# Indirect Teacher Resources

Find Indirect lesson plans and worksheets
Showing 1 - 200 of 241 resources
4:57
Lesson Planet

#### How Do You Solve a Problem Using Indirect Measurement with Shadows?

For Teachers 6th - 12th
Using indirect measurement, this video shows viewers how to find the height of a flagpole. The lecturer employs drawings as well as proportions to solve this problem, explaining each step. A useful resource to aid struggling learners and...
4:22
Lesson Planet

#### How Do You Solve a Problem Using Indirect Measurement with Shadows?

For Teachers 6th - 10th
Using indirect measurement, this video shows viewers how to find the height of a flagpole. The lecturer employs drawings as well as proportions to solve this problem, explaining each step. A useful resource to aid struggling learners and...
4:19
Lesson Planet

#### Indirect Measurement: Lesson

For Students 7th - 11th Standards
When the tape measure will not reach, use similarity. An installment of a large playlist on geometry introduces the method of indirect measurement. Using a story of finding the distance to the sun, the video shows how to use similar...
Lesson Planet

#### Landscape Architects: Working with Indirect Measurement

For Teachers 7th - 8th Standards
Working as a landscape architect, your designers calculate the measurement of the school flagpole as a guide to picking the right trees for their plan. Using indirect measurement with proportions, the goal is to calculate how high they...
Lesson Planet

#### Forest Measurements: An Applied Approach

For Students 9th - Higher Ed Standards
Geometry—it's not just for the math classroom! Learners explore the field of forestry through a mathematical lens. An instructional resource explains how forest workers collect data about trees such as height, diameter, and age using...
Lesson Planet

#### How Do You Measure the Immeasurable?

For Teachers 9th - 12th Standards
How do you measure a distance where the measurement tool will not reach? Pupils use the concept of similar triangles to perform indirect measurements. The instructional activity asks teachers to demonstrate the method and lead the class...
Lesson Planet

#### Measuring Shadows Using an Ancient Method

For Teachers 8th - 12th Standards
How did ancient peoples determine the height of really tall objects? Young scientists and mathematicians explore the concept of using shadows to measure height in a hands-on experiment. Paired pupils measure shadows, then calculate the...
Lesson Planet

#### Direct and Indirect Measurement of Area

For Students 7th
In this measurement of area worksheet, 7th graders identify and complete 5 different problems that including determining the measurement of an area in a shamrock figure. First, they determine the area of the shamrock illustrated by...
Lesson Planet

#### REALLY Tall!

For Teachers 9th - 12th Standards
Conduct indirect measurements three ways. Working in groups, pupils come up with different ways to measure three tall objects indirectly. The teacher provides measurement information requested by the teams, and learners then calculate...
Lesson Planet

#### Looking Up--Indirect Measurement Using Trigonometry

For Teachers 9th - 12th
Students solve indirect ratios.  For this indirect measurement lesson, students explore trigonometric functions and ratios using outdoor objects.  They estimate heights and  perform indirect measurements.
4:44
Lesson Planet

#### Measuring Angles: Lesson

For Students 4th - 6th Standards
Develop a degree of measurement. With the aid of a protractor, the video shows how to measure angles. The segment of a larger playlist on geometry basics points out that it is possible to start at a value other than zero when measuring...
4:18
Lesson Planet

#### Measuring Distances: Lesson

For Students 5th - 8th Standards
Let's rule the coordinate plane. By reviewing the marking on rulers, the video discusses how to determine the measurement between two points. The resource, a portion of a basic geometry playlist, determines the length of a side of a...
2:56
Lesson Planet

#### Trigonometry Word Problems: Lesson

For Students 9th - 11th Standards
Look up or down to find the answer.  A segment of an extensive playlist on geometry introduces angle of depression and elevation to find indirect measurements. Using trigonometric ratios, the presentation finds missing sides and angles...
Lesson Planet

#### Measuring Up

For Teachers 6th - 8th
Proportional reasoning, ratio, and indirect measurement come to life in a series of seven lessons. Learners will convert measurements into customary and metric units. They also use real-world examples to solve problems involving scale as...
Lesson Planet

#### Indirect Measurement Techniques-- Grade Eight

For Teachers 8th
Eighth graders explore indirect measurement.  In this elementary mathematics lesson, 8th graders use shadows and the concept of similarity mirrors to see reflected images and use a stadia to conduct indirect measurement.  The lesson...
Lesson Planet

#### Landscape Architects: Working with Indirect Measurement

For Teachers 9th - 10th
Students measure the flag pole using indirect measurement. In this geometry instructional activity, students use the properties of geometry and indirect measurement to landscape properties. They relate indirect measurement to...
Lesson Planet

#### Ballooning Inside the Box

For Teachers 8th - 10th
Students use similar triangles to solve a real-world problem.  In this geometry lesson, students explore properties of ratios and proportion as used in similar triangles and use proportions to determine the indirect height of an object.
2:44
Lesson Planet

#### Measuring Arc Length: Lesson

For Students 7th - 11th Standards
Slice off a piece of pi! A section of an extensive playlist on geometry develops the formula to find the length of an arc. Using the formula, the presentation works through examples finding the arc length, the radius, and the measure of...
Lesson Planet

#### How Tall Am I?

For Teachers 9th - 11th Standards
Which method results in a better estimate of the height? Using  different methods, groups estimate the height of three objects on campus. They record their measurements and any necessary computations and compare them to the actual...
Lesson Planet

#### Should I Get My Mole Checked Out?

For Teachers 10th - 12th Standards
You definitely want to check out this mole! Chemistry scholars experiment to observe an unobservable quantity with an engaging lesson plan from K20. Partners collaborate to determine what's inside an opaque box, then complete a series of...
Lesson Planet

#### How Tall Is It?

For Teachers 9th - 12th Standards
Find the height from afar. Teams role play as summer interns to find the height of a set of windows from the outside. Scholars must first determine how to find the height with the available tools. After determining a strategy involving...
6:22
Lesson Planet

#### How Do You Find Missing Measurements of Similar Figures Using a Proportion?

For Teachers 6th - 8th
Two similar triangles have the same angles, but their legs have different lengths. This means their angles are congruent, and thusly, their corresponding sides are congruent. So there is a missing measurement that needs to be found. Set...
Lesson Planet

For Students 7th - 8th
In this shadow sleuth instructional activity, students use proportions and indirect measurement to determine the measurement of given objects. This one-page instructional activity contains three problems.
Lesson Planet

For Teachers 1st - 2nd
Students compare the weight of the students's favorite soft toys directly and then indirectly using beads.
Lesson Planet

#### Indirect Measurement Technique: Using Trigonometric Ratios

For Teachers 9th
Ninth graders create clinometers using a protractor, weight, and string. They work in pairs to practice sighting objects above or below their line of sight. Students use ratios of right triangles to determine the height of a...
Lesson Planet

#### Indirect Measurement, Surveying Trigonometry

For Teachers 9th - 10th
Students measure distances using indirect measurements. In this geometry lesson, students apply proportion and ratios to measure heights of different objects. They differentiate between direct and indirect measurements.
Lesson Planet

#### Measurement

For Teachers 8th - 10th
Learners explore the necessity for standards of measurement and measure length, volume, mass and angles. In this measurement lesson plan, students use their hand and foot to measure objects in the room. They compare their measurements to...
5:54
Lesson Planet

#### Inscribed Angles in Circles: Lesson

For Students 9th - 12th Standards
Circle the angles and intercept the arcs. The video introduces three theorems relating to inscribed angles in circles. Using drawings, the segment of a playlist on geometry illustrates the measure of angle along with theorems about two...
1 In 1 Collection
EngageNY

#### Modeling Using Similarity

For Teachers 8th Standards
How do you find the lengths of items that cannot be directly measured? The 13th installment in a series of 16 has pupils use the similarity content learned in an earlier resource to solve real-world problems. Class members determine...
Lesson Planet

#### Indirect Length Word Problem

For Students K - 2nd
Although the graphics on this length comparison exercise aren't great, pupils will get the idea. They read an indirect length word problem, which asks them to compare three animals from shortest to tallest. The wording here may be...
Lesson Planet

#### Indirect Length Word Problems

For Students 1st
Word problems are a wonderful way to connect math and the real world. However, I've never seen a 12 centimeter-long apple tree. Aside from some odd word choices, this activity provides children with ten problems to solve by determining...
Lesson Planet

#### How Tall is It?

For Teachers 9th - 11th Standards
Your collaborative geometry learners use trigonometric ratios and a clinometer that they assemble themselves to indirectly measure the height of a flag pole and other objects. Then they create a presentation to explain the process they...
3:14
Lesson Planet

#### Arcs in Circles: Lesson

For Students 6th - 11th Standards
Taking a major look at arcs is not minor. A segment of an extensive playlist on geometry introduces the concept of an arc in a circle. The resource demonstrates how to find the measure of an arc and defines special types of arcs.
Lesson Planet

#### "Similari-Tree"

For Teachers 8th
Eighth graders investigate direct and indirect measurement.  In this eighth grade geometry and measurement lesson, 8th graders investigate a variety of methods for measuring the height of a tree.  Students investigate and use the...
Lesson Planet

#### Indirect Measurement

For Students 8th - 9th
In this geometry activity, students differentiate between direct and indirect measurements. They create a table with their findings. There are 9 questions.
Lesson Planet

#### The Measurement Man

For Teachers 3rd - 5th
Students explore the measurements of capacity by constructing a creative project in the shape of a man. The man has body parts that represent different units of measurement and can be used to make conversions. This is highly concrete and...
Lesson Planet

#### River Width

For Students 9th - 12th Standards
Just how wide of a river runs through it? The assessment provides a scenario of finding the distance across a river. Given two markers on one side of the river and the angles formed by them and an object on the other side of the river,...
Lesson Planet

#### Microscale Investigations of Catalase Activity in Plant Extracts

For Teachers 9th - Higher Ed
Use indirect measurements to monitor metabolic activity in plant cells. Scholars understand that cells with a higher metabolic rate have a higher concentration of catalase enzyme. They use this information to compare metabolic rates of...
5:39
Lesson Planet

#### How Can the Universe Be Flat?

For Students 9th - Higher Ed Standards
Flat, positively curved, or negatively curved ... what is the true shape of the universe? Scientists use many indirect measurements to base their theories on the shape of the universe. Using an installment from the SciShow Space series,...
Lesson Planet

#### Indirect Measurement

For Teachers 9th - 10th
Students measure and apply their knowledge of proportion to solve problems. In this geometry lesson, students measure using a meter stick, small mirror and measuring tape. They compare and contrast their measurements to objects outside...
Lesson Planet

#### Indirect Measurement Techniques

For Teachers 8th
Eighth graders explore three different indirect measurement techniques in this lesson that include using shadows and concepts of similarity, using mirrors to see reflected images and applying concepts of similarity to those images.
2:28
Lesson Planet

#### Triangle Sum Theorem: Lesson

For Students 6th - 10th Standards
The measures all add up. The presentation, part of a helpful playlist on geometry, provides the statement of the Triangle Sum Theorem. Using the theorem, the video shows how to find the missing measure of an angle.
2:51
Lesson Planet

#### Vertical Angles: Lesson

For Students 6th - 10th Standards
Define angles across from each other. An informative segment from a larger playlist on geometry introduces vertical angles and shows they have equal measures. Using their properties, the presenter solves problems involving vertical angles.
2:27
Lesson Planet

#### Corresponding Angles: Lesson

For Students 9th - 12th Standards
Take a parallel view of correspondence. The resource, part of a playlist on basic geometry, introduces the corresponding angle postulate. By first identifying corresponding angles, the video highlights the relationship between the angle...
Lesson Planet

#### Similar Figures

For Students 10th
In this geometry worksheet students explore similar polygons and determine measure of missing sides and angles. Students use indirect measurement with similar triangles and determine the area and volume of similar figures. The seven page...
Lesson Planet

#### Measurement

For Teachers 6th - 8th
Students discover using motion detectors, LoggerPro, and traditional meter sticks, different methods of measuring and graphing position and velocity. They are able to open LoggerPro on the iBook computers. Students are able to collect...
Lesson Planet

#### Measurement

For Teachers 6th - 8th
Learners utilizing motion detectors determine a variety of methods of measuring and graphing positions and velocity. They participate in a scavenger hunt dealing with motion detectors, time graphs, positions and velocity. Each student...
Lesson Planet

#### Test 2: MAT 104 - Trigonometry

For Students 11th - 12th
For this trigonometry worksheet, students use trigonometric ratios and the Pythagorean Theorem to find the length of one side of a triangle. They determine values of angles and solve story problems. This two-page worksheet contains 25...
3:34
Lesson Planet

#### Inscribed Similar Triangles: Lesson

For Students 6th - 12th Standards
Create similar triangles with a little altitude. A section of an extensive playlist on basic geometry discusses how an altitude of a right triangle creates similar triangles. Using the theorem, the presentation finds unknown side...
EngageNY

#### Between-Figure and Within-Figure Ratios

For Teachers 9th - 10th Standards
Tie the unit together and see concepts click in your young mathematicians' minds. Scholars apply the properties of similar triangles to find heights of objects. They concentrate on the proportions built with known measures and solve to...
2:32
Lesson Planet

#### Angles Outside a Circle: Lesson

For Students 6th - 12th Standards
Understand the difference in finding angle measures. A segment of an extensive geometry playlist introduces the formula to find the measure of an angle formed outside of a circle. Using examples, the video shows how to calculate measures...
3:09
Lesson Planet

#### Angles On and Inside a Circle: Lesson

For Students 9th - 11th Standards
A video introduces methods to find the measure of angles whose vertex is on and inside a circle. Within examples, the section of a larger playlist on basic geometry incorporates several angle measurement theorems.
2:39
Lesson Planet

#### The Third Angle Theorem: Lesson

For Students 8th - 11th Standards
If two sets of angles are equal, the third set is too. An informative portion of a playlist on geometry develops the Third Angle Theorem for triangles. Using the theorem, the presenter shows how to determine the measure of missing angles...
5:25
Lesson Planet

#### Comparing Triangle Angles and Sides: Lesson

For Students 7th - 11th
Use the opposite to organize angles or sides. The video provides the relationship of angle measures based on the lengths of sides in a triangle and its converse. Using two triangles, the segment of a larger playlist on geometry shows the...
Lesson Planet

#### Indirect Measurement with Similar Triangles

For Teachers 9th - 12th
High schoolers use similar triangles to find missing heights.  In this using similar triangles to find missing heights instructional activity, students use proportions to find the heights of missing side lengths.  High schoolers find the...
Lesson Planet

#### Indirectly Direct

For Teachers 4th - 8th
Student form and test hyptheses using indirect and direct observation. They launch marbles to determine the shape of a hidden object.
4:45
Lesson Planet

#### Interior Angles in Convex Polygons: Lesson

For Students 7th - 11th
How are angles and sides related? Given several regular convex polygons, the video shows how to calculate the sum of their interior angles. The segment in a playlist on geometry shows how to find the measure of one angle if the polygon...
Lesson Planet

#### Measuring With Fluids

For Teachers 4th - 5th
Young scholars investigate the concept of measurement for capacity and they use real containers to be filled of different sizes. Students use the scoops as the number of units for counting the capacity volume. Then they order the...
Lesson Planet

#### CORNER CABINET

For Teachers 9th - 10th
Ninth and tenth graders calculate the length, width, height, perimeter, area, volume, surface area, angle measures or sums of angle measures of common geometric figures. They solve problems involving scale drawings, models, maps or...
Lesson Planet

#### Worksheet #2: Trigonometric Ratios

For Students 9th - 12th
In this trigonometric ratios worksheet, students use trigonometric ratios to complete indirect measurement word problems.  This three-page worksheet contains 3 problems.
Lesson Planet

#### Unit 9 Trigonometry

For Students 9th - 11th
In this trigonometry worksheet, students find the lengths of triangles. They construct triangles and spirals. Students complete indirect measurement problems. They find the distance between objects and determine the volume of rectangular...
Lesson Planet

#### Indirect Measurement Technique: Using Trigonometric Ratios

For Teachers 9th - 12th
Students explore the concept of trigonometric ratios.  In this trigonometric ratios lesson, students use trigonometric ratios and the angle of elevation/depression to determine the height of an object.  Students use their clinometer made...
3:00
Lesson Planet

#### Complementary Angles: Lesson

For Students 6th - 10th Standards
Complement the angle definition. The resource, a video within a basic geometry playlist, introduces the definition of complementary angles. Using the definition, the presentation finds complements of given angles.
Lesson Planet

#### Study Jams! Area of Irregular Figures

For Students 5th - 8th Standards
Painting an irregular figure can be tricky if we don't know the exact area. This interactive presentation reveals that irregular figures can be broken into smaller, simple figures that use the area formulas. Go through two examples,...
Lesson Planet

#### How Tall is the Tree?

For Teachers 9th - 12th Standards
Pairs or small groups work together to determine the height of a tree using similar triangles. Learners make a judgement which direction to let a tree fall to avoid hitting any structures. They then write letters to the principal...
Lesson Planet

#### Data Analysis

For Teachers 7th - 8th
In this data analysis worksheet, learners solve and complete 4 different types of problems. First, they reduce the data provided to find the means, and graph the means in a line graph. Then, students graph the data from each mixture...
Lesson Planet

#### The Shadow Knows: Student Worksheet

For Teachers 4th - 6th
For this math worksheet, students will work in small groups to measure the height of objects, such as trees, using their shadows. Students will be able to determine heights of objects that cannot be directly measured.
Lesson Planet

#### Whatcha Gunna Do When the Hulkster's Measuring Too??

For Teachers 8th - 10th
Students measure using tools they have made. In this algebra lesson, students measure the height and distance using non-traditional measuring methods. They apply their findings to algebra and trigonometry properties of measurements.
Lesson Planet

#### Extra Solar Planets Interactive

For Students 9th - Higher Ed
Studying what you can't see can be challenging. Discover how scientists use indirect measurements to prove the existence of planets and estimate their sizes. The introduction explains the symbiotic movement of planets and stars during an...
Lesson Planet

#### Binary Stars Interactive

For Students 9th - Higher Ed
A celestial body's distance from Earth makes studying its characteristics much more difficult. Learn how scientists use indirect measures to determine the size of stars. The interactive activity has individuals adjust the size of binary...
Lesson Planet

#### Heating Up: Direct and Indirect Sunlight

For Teachers 6th - 8th
Students, by conducting simulations, explore the effects of direct and indirect sunlight on heating of the Earth.
Lesson Planet

#### What Is An Inch?

For Teachers 1st - 2nd Standards
Students identify the length of an inch. For this measurement lesson, students read Inch by Inch and predict how many inches long various objects are. Students practice measuring the objects by using an inch ruler.
Lesson Planet

#### Economic Goals and Measuring Activity

For Teachers 9th - 10th
Explore the role of government in the economy market. Young scholars analyze the economic decision-making process and how it takes into consideration additional cost, benefits, and public awareness of what they are trying to accomplish....
5:44
Lesson Planet

#### How Do You Find Missing Measurements of Similar Figures Using a Scale Factor?

For Teachers 6th - 8th
Similar figures have corresponding sides and corresponding angles. With this in mind, missing values can be found by using a scale factor. Not sure how to do that? Watch this video as the instructor illustrates how to set up the known...
4:46
Lesson Planet

#### Exterior Angles Theorems: Lesson

For Students 9th - 12th Standards
Use the inside to find the outside. The resource presents two theorems dealing with exterior angles of a triangle. Using the two theorems, the segment from a larger geometry playlist works problems to solve for angle measures.
2:34
Lesson Planet

#### Using Ratios: Lesson

For Students 6th - 11th Standards
How do ratios work in geometry? The video answers just this question in order to help your class master an important skill. Using the concept of ratios, this segment in an extensive geometry playlist applies ratio reasoning to...
4:34
Lesson Planet

#### Inverse Trigonometric Ratios: Lesson

For Students 9th - 11th Standards
Finding the inverse of trigonometric ratios is not the same as finding the reciprocal. The presentation introduces how to find the angle of a right triangle given sides. Part of a larger playlist on geometry, the video uses the inverse...
3:17
Lesson Planet

#### Triangle Proportionality: Lesson

For Students 7th - 11th Standards
Look at proportionality from a parallel perspective. A section of an expansive geometry playlist introduces the Triangle Proportionality Theorem. Using the theorem, the video shows how to determine missing measurements in triangles.
3:14
Lesson Planet

#### Similar Polygons and Scale Factors: Lesson

For Students 7th - 11th Standards
Develop an understanding of the scale of similarity. Starting with the concept of congruency, the resource introduces the idea of similarity between two figures. As part of a larger playlist on geometry, it defines similarity and uses...
Lesson Planet

#### Getting it Right! An Investigation of the Pythagorean Theorem

For Teachers 5th - 8th
In order to learn about the Pythagorean Theorem, young mathematicians investigate relations and patterns between different sides of a right triangle to look for possible relations among the squared sides. Once they have established the...
Lesson Planet

#### Real World Problem Solving

For Teachers 9th - 10th
Learners plan a delivery route as a courier. In this algebra lesson, students incorporate indirect measurement and scale to calculate the driving time of their route.
Lesson Planet

#### Is This House a Home?

For Teachers 7th - 9th
Students use Excel to create a model house. In this measurement lesson, students log information about the different measurements involved in building a model house using a spreadsheet.  They compare the real measurement of their model...
Lesson Planet

#### Getting It Right!

For Teachers 6th - 8th
Students construct right triangles, measuring the sides and recording the measurements in spreadsheets. They analyze their measurements for patterns and research the Internet for information on Pythagoras.
Lesson Planet

#### Measures and Weights!

For Teachers 6th
Sixth graders increase their estimation and measurement skills in regard to the metric system. After a lecture/demo, student groups weigh and measure a variety of objects using metric measurement.
4:12
Lesson Planet

#### How Do You Find a Scale Factor in Similar Figures?

For Teachers 6th - 10th
Three angles of one triangle are equal to the corresponding angles in another triangle. Use a ratio of corresponding sides to find the scale factor. Actually, there are two scale factor values. The instructor will explain how to get both...
Lesson Planet

#### Measuring the Flagpole

For Teachers 8th - 11th
Studets practice problem solving and comparison of quantities, ratios and prproportions. They develop a plan for determining the height of a flagpole complete with drawings and calculations. In addition, they complete a written...
Lesson Planet

#### Sonar Mapping of the Ocean Floor

For Teachers 8th
Eighth graders participate in an experiment that emulates a sonar signal bouncing off the ocean floor. They determine how the ocean floor is measured by the length of time it takes for the sonar signal to return. They work with a wooden...
Lesson Planet

#### Mini Mystery Boxes

For Teachers 6th - 12th
Students use indirect observations to create models.  In this nature of science instructional activity, students make observations about what they cannot see inside of the mystery boxes to better understand how scientists use indirect...
Lesson Planet

#### Integrating Physics-Observing and Experimenting to Find Relationships

For Students 8th - 11th
In this experimental relationship worksheet, students read about direct and indirect relationships between variables in experiments. They answer three questions about relationships between variables.
Lesson Planet

#### Similar Figure Word Problems

For Students 7th - 10th
In this similar figure worksheet, students use similar figures and indirect measurement to determine distance.  They use proportions of similar figures to determine scale figures.  This two-page worksheet contains 8 problems.  Answers...
Lesson Planet

#### How Big is a Breath?

For Teachers 4th - 9th
Students demonstrate how to use math skills to measure their lung capacity. In this human biology lesson, students use a clear plastic container, measuring cup and rubber balloons to demonstrate how the lungs work. Students estimate the...
Lesson Planet

#### What Do Bread and Beer Have in Common?

For Teachers 7th - 10th
Students listen to an explanation of yeast cells and how they effect bread and beer. They discuss the ways alcohol affects the human body and participate in an indirect observation about cell respiration in yeast-molasses cultures.
Lesson Planet

#### Launch Altitude Tracker

For Teachers 4th - 12th Standards
Using PVC pipe and aquarium tubing, build an altitude tracker. Pupils then use the altitude tracker, along with a tangent table, to calculate the altitude of a launched rocket using the included data collection sheet.
Lesson Planet

#### How Thick Is a Soda Can II?

For Teachers 9th - 12th Standards
Science, technology, and math come together in this one combination exercise. Analyzing the common soda can from both a purely mathematical perspective and a scientific angle allows for a surprisingly sophisticated comparison of...
2:55
Lesson Planet

#### Supplementary Angles: Lesson

For Students 6th - 10th Standards
Supplement your knowledge of angles. Part of a playlist exploring geometry concepts, an interesting video introduces the definition of supplementary angles. Using the definition, the presentation shows how to find the supplement to a...
1:57
Lesson Planet

#### Alternate Interior Angles: Lesson

For Students 9th - 12th Standards
Concepts of alternate interior angles parallel the concepts of corresponding angles. Using a diagram, the presentation defines and identifies alternate interior angles formed by a transversal and two parallel lines. The video in a...
2:21
Lesson Planet

#### Exterior Angles in Convex Polygons: Lesson

For Students 7th - 11th
Going around is the same no matter the number of sides. An installment in a geometry playlist explains exterior angles of a convex polygon. The video presents the formula to find the sum of the angles along with the formula for finding...
1 In 1 Collection
Lesson Planet

#### We Need Water

For Teachers K - 3rd
There's nothing quite like a glass of ice-cold, freshly squeezed lemonade. Lesson seven of this series explains how the water humans need to survive can come in many forms. Teach your class about how much water humans require every day...
Lesson Planet

#### The Pendulum

For Teachers 6th - 8th
Students discover and discuss relationships and functions between varying dependent variables and how they affect the period of the pendulum. They use graphing calculator to express the data collected in a graph, to analyze the graph,...
Lesson Planet

#### Surface Area with Polydrons

For Teachers 3rd - 4th
Students explore measurements by analyzing geometric shapes. In this surface area lesson plan, students identify the terms volume, weight, perimeter and area in order to find the requested measurements of specific polygons. Students...
Lesson Planet

#### Water Usage and Conservation

For Teachers 6th - 8th
Students investigate water usage at school and at home. They use graphs and tables to evaluate water usage. Students describe possible water conservation measures. They use graphs and tables to relate data as part of a written report.
Lesson Planet

#### How Tall Is the Flagpole?

For Teachers 1st - 5th
Students explore measurements by participating in geometry scenario activities. In this height lesson, students utilize geometric formulas to solve a theoretical problem based on an unknown height of a flag pole. Students utilize...
Lesson Planet

#### Average Yearly Rainfall in Selected Rainforests

For Students 4th - 5th
In this measurements worksheet, students use multiplication and division to convert units of measure for the yearly rainfall in rainforests.
Lesson Planet

#### Measurement Math Lesson Plan

For Teachers 9th - 11th
Students examine the necessity for the use of standards, distinguish units of measure, derive units of measure, and measure length, volsume, mass, and angles. They also measure indirectly.
Lesson Planet

#### ndirect Measurement Technique: Using Trigonometric Ratios

For Teachers 9th
Ninth graders find the height of an object that would be difficult or impossible to measure directly. They construct and use a Clinometer to measure the angle of elevation (or depression). Students create a sketch of the measurement...
Lesson Planet

#### Va Va Va Zoooommm

For Teachers 9th - 12th
Students, in groups, measure a variety of physical components to several activities. They use both standard and non-standard forms of measurement and then develop conclusions about the use of units in measurement.
Lesson Planet

#### Trigonometry in Action

For Teachers 9th - 12th
Students examine how to apply the principles of trigonometry in authentic measurement situations. They work in groups to determine the height of an object such as a flag pole by determine the angle from their position to the top.
Lesson Planet

#### Maps

For Teachers 5th - 10th
Students figure out the mileage from one state to another using a map. In this map lesson, students look at the scale factor and turn it into a fraction. They measure the distance between two cities and use the proportion to find the...
2:27
Lesson Planet

#### Midsegment Theorem: Lesson

For Students 8th - 11th Standards
Use half the length to connect the midpoints. A section of a playlist on geometry introduces the concept of a midsegment of a triangle and how to find it. The video states the properties of the midsegment which make up the Midsegment...
2:33
Lesson Planet

#### Cylinders: Lesson

For Students 7th - 11th Standards
The solid is the same as a prism ... well, almost. The presentation makes connections between finding the volume and surface area of cylinders to prisms. Using the newly derived formulas, the portion of a large geometry playlist...
Lesson Planet

#### Teddy Bears and Friends

For Teachers 1st - 3rd
Children begin by making direct comparisons between objects and putting a number of objects into order according to length. They are also introduced to measuring with multi-link cubes which allows them to compare objects which cannot be...
Lesson Planet

#### Measuring Heights With Triangles

For Teachers 8th - 10th
Students identify the different properties of triangles. In this geometry lesson, students differentiate between congruent and similar triangles. They use mathematical reasoning to solve word problems.
Lesson Planet

#### The Circle's Measure

For Teachers 3rd - 7th
Students explore circumference and diameter. In this math lesson, students apply their knowledge of circumference and diameter to solve mathematical riddles. Students apply this knowledge to find circumference and diameter of various...
Lesson Planet

#### Active Physics Lesson Plan

For Teachers 9th
Ninth graders measure heights, distances and lengths, realize importance of accuracy in measurements, discover relationship between indirect measurement and concepts of probability and prediction, and research life of Erathosthenes...
Lesson Planet

#### Is This House a Home?

For Teachers 8th
Eighth graders use Excel to build a scale model of a house based on measurements given. They apply concepts of indirect measurement. Students represent problem situations with geometric models. They utilize a spreadsheet to calculate and...
Lesson Planet

#### Mirror, Mirror on the Ground!

For Teachers 8th
Eighth graders use their knowledge of similar triangles and indirect measurement to measure the heights of various objects.
Lesson Planet

#### The Value of Volume

For Teachers 9th - 11th
Learners measure the perimeter and area of their polygons. In this geometry instructional activity, students calculate the volume and area using the correct tools. They calculate the time and temperature and the perimeter and side...
Lesson Planet

#### Special Segments in Triangles

For Students 10th
In this special segments in triangles activity, 10th graders solve 86 various types of problems that include determining the measure of various triangles. They draw and label a figure that illustrates each situation. Then, students prove...
Lesson Planet

#### Pumpkin Play

For Teachers K
Have you ever examined a pumpkin and estimated the number of lines it has? In this math lesson, students count the actual number of lines, record and graph the results. They investigate the circumference, weight and buoyancy of the...
Lesson Planet

#### Draw To Scale The E-Z Way

For Teachers 4th
Fourth graders draw a rough floor plan of a house to scale without using a ruler to determine measurements. They see how architects use scale to draw blueprints, and solve math problems using scale.
Lesson Planet

#### Risk Behavior: HIV/AIDS

For Teachers 7th - 12th
Bring to life the health risks of unsafe sex and drug use. Participants are involved in a simulation they don't understand until the end. One pupil is "in the know", secretly playing the role of being HIV-positive. Everyone else...
Lesson Planet

#### Runaway Universe

For Teachers 5th - 12th
Young scholars complete a hands on activity to determine how scientists use indirect observations to define problems that are not directly measurable. They complete an associate student handout.
3 In 3 Collections
PD Learning Network

#### Weekly Lesson Planning Template

For Teachers K - 12th
You'll feel prepared and ready to begin your school week when you've considered the progression of your lessons on an hourly and day-to-day basis.
Lesson Planet

#### Hot Friction

For Teachers 6th
Sixth graders use small electronic devices known as thermistors to measure the temperature beneath an object such as a coffee cup as it slides across a surface. By choosing different surfaces, 6th graders can compare in a quantitative...
Lesson Planet

#### Heat vs. Temperature: What's the Difference?

For Teachers 9th - 12th
Students explore the differences between heat and temperature. They view and discuss a video from the Eureka! ITV series and conduct simple experiments. They also measure and analyze temperature data using a graphing calculator.
Lesson Planet

#### Introduction to Neutraliization

For Teachers 5th - 8th
Learners explore acids and bases and the process of neutralization.T hey practice volume measurements and observe the neutralization of an acid directly through bubble formation and indirectly through indicator color changes.
Lesson Planet

#### Thirsty for A Liter or Milliliter?

For Teachers 2nd
Second graders work with liters and milliliters for measurement.
Lesson Planet

#### Dino Cylinders

For Teachers K - 1st
Students investigate the capacity of containers using small dinosaur figures as the unit of measure. They work with a number of different shaped containers to compare the capacity as they practice counting the dinosaurs. They complete an...
Lesson Planet

#### Pi Day (March 14)

For Teachers 4th
Fourth graders determine the value of ? by measuring the circumference and diameter of circular objects such as soup cans, Oreo cookies, etc..
Lesson Planet

#### That's The Way The Ball Bounces

For Teachers 8th
Eighth graders examine a situation and determine if the quantities vary directly or indirectly, and represent that variation graphically in a table and in an equation. They make predictions about how high various balls bounce, then find...
Lesson Planet

#### Hover Above the Earth

For Teachers 4th
Fourth graders build a balloon hovercraft, take direct measurements, answer critical questions, and make calculations using the data gathered in order to see the concept of acceleration as a change in velocity. They use a worksheet...
Lesson Planet

#### Weather-Air Temperature

For Teachers 5th - 6th
Learners complete activities to learn about changing air temperature. In this air temperature lesson, students study various ways to measure air temperature and learn factors that influence temperature. Learners study the weather in a...
Lesson Planet

#### Our View of the Sun

For Teachers 9th - 12th
Students are introduced to safety rules for observing the Sun, how the distance of the Sun is measured using Kepler's Laws and identify the visible layers of the Sun. They discuss solar eclipses and view images of eclipses using the...
Lesson Planet

#### How Big Can a Bee Be?

For Teachers 7th - 10th Standards
Mathematicians analyze the relationships between surface area and volume. They conduct Internet research, conduct various experiments, record the data in a spreadsheet, and graph the results and compare the rate of increase of surface...
Lesson Planet

#### River Width

For Teachers 6th - 8th
Students determine the level of accuracy needed for computations involving measurements and irrational numbers. They use the correct number of digits in computation to achieve an appropriate unit or level of accuracy when solving...
Lesson Planet

#### Area, Perimeter and Rations Using Pentominoes

For Teachers 3rd - 10th
Learners of all ages investigate area and perimeter through pentominoes. In this geometry lesson, students calculate the are and perimeter of different geometric shapes and describe the properties of similar and congruent shapes. This...
Lesson Planet

#### Weighted Eggs

For Teachers K - 1st
Students order five weighted plastic eggs in order from lightest to heaviest.
Lesson Planet

#### “The *Distance* Less Traveled

For Students 11th - 12th Standards
Use geometry to find your way from point A to point B! Learners work to build the Law of Cosines using a conceptual exercise. They use their knowledge of Law of Sines and a map triangulation activity to write their own equations for the...
Lesson Planet

#### An "Eggs"traordinary Sculpture

For Teachers 8th
Eighth graders identify and categorize different types of animals which lay eggs, use a five step method for viewing and interpreting a piece of artwork, and use an indirect method to find the mass of a large object.
Lesson Planet

#### What Does a Quarter Weigh?

For Teachers 4th - 6th
Students study the historical figures and symbols of U.S. patriotism depicted on the penny, nickel, dime, and quarter coins. They create a balance scale from common materials to measure the approximate weight of a quarter.
Lesson Planet

#### Lesson 3-5: Proportions and Similar Figures

For Students 9th - 12th
In this similar figures worksheet, students use proportions to solve 6 short answer and multiple choice questions.  Students use proportions to answer questions about map scales and height of trees given shadow lengths.
Lesson Planet

#### Making The Height

For Teachers 12th
Twelfth graders apply estimation techniques to determine how high any one basketball player can jump.
Lesson Planet

#### Similar Triangles

For Teachers 9th
Ninth graders find the height of every day objects using techniques learned through postulates that allow triangles in a problem to be similar. They calculate the length of a missing side and solve proportions.
Lesson Planet

#### Lengthy Lianas

For Students 4th
In this math problem solving instructional activity, 4th graders solve 6 word problems that are based the liana, a rain forest plant. They add and divide to solve the problems. They draw a picture to show their solution to the last problem.
Lesson Planet

#### Sin, Cos and Tangent

For Teachers 9th - 10th
Students find the identity o sine, cosine and tangent. In this precalculus lesson, students solve and identify the different parts of a right triangle. They use the ratios of the Pythagorean Theorem to find the missing side or angle.
Lesson Planet

#### Using Spectrophotometers to Examine Photosynthetic Rates

For Teachers 9th - 12th
Learners examine how photosynthetic rates can change by using different qualities of light. They practice using spectrophotometer and the scientific method to detect the absorbance values in light treatments.
Lesson Planet

#### Thermodynamics

For Students 11th - Higher Ed
In this thermodynamics worksheet, students review the first law of thermodynamics and define enthalpy, state functions, and heat capacity. Students use Hess' law and heats of formation to solve reactions. This worksheet has 30 problems...
Lesson Planet

#### What are Igneous Rocks and How are They Formed?

For Teachers 5th - 8th
Crystals form before your very eyes! What sixth grader wouldn't enjoy this lesson plan on igneous rock formation? Using hot Salol, junior geologists observe the crystal formation process as the material cools. This comprehensive lesson...
Lesson Planet

#### Earth: Deposition and Lithification

For Teachers 6th - 8th
Geology geniuses analyze sediment samples with a hand lens and sort according to physical characteristics. They also learn about the processes of cementation, compaction, and lithification within the rock cycle. The lesson plan is...
Lesson Planet

#### What are Metamorphic Rocks and How are They Formed?

For Teachers 5th - 8th
Even though the student handouts are not included in the write-up, this lesson contains the instructions for terrific activities to use when teaching middle schoolers about metamorphic rocks. First, they compare granite to gneiss and...
Lesson Planet

#### Congress's Economic Powers

For Teachers 9th - 12th Standards
Join Congress as they assess their economic abilities for spending—and as they discover their limits. High schoolers use an educational resource to explore Congress's economic powers and learn to apply these concepts to their everyday...
Lesson Planet

#### Weather

For Teachers 6th - 10th Standards
Sixty-one slides define weather and journey through five factors that combine to create it: temperature, humidity, air pressure, wind, and precipitation. The order of the slides may or may not be the way you want them, but they can be...
Lesson Planet

#### Atomic Absorption Determination of Zinc and Copper in a Multivitamin

For Teachers 11th - Higher Ed
Advanced lab apprentices prepare zinc and copper solutions to which they will compare the same minerals from a multivitamin. Using absorption spectroscopy, they analyze the contents of the multivitamin for concentration. This lab can be...
Lesson Planet

#### Back Titrations

For Teachers 11th - 12th
In this chemistry worksheet, students calculate the titrations of various types of chemistry problems. The questions include background information.
Lesson Planet

#### Will It Last

For Teachers 6th
Sixth graders explore the water supply on Earth. For this water consumption lesson, 6th graders attempt to determine whether the Earth has enough water for human consumption. Students experiment and chart observations.
Lesson Planet

#### Weather Patterns and Seasonal Changes

For Teachers K - 2nd Standards
Get your class outside to observe their surroundings with a lesson plan highlighting weather patterns and seasonal changes. First, learners take a weather walk to survey how the weather affects animals, people, plants, and trees during...
Lesson Planet

#### Ant Antics

For Teachers 7th - 8th Standards
The largest ant colony ever found was more than 3,750 miles wide. In the activity, learners discuss ants and how people control them using insecticides. In groups, scholars then conduct experiments to test the effectiveness of three...
Lesson Planet

#### Earth Science

For Teachers 9th - 12th Standards
Explore the consistency of the earth's layers and soil through modeling. By conducting an engaging experiment, learners develop a model for the earth's layers and a soil profile using edible materials. Each material is chosen based on...
Lesson Planet

#### Poetic Elements

For Students 9th - 12th
Poetry is all about sound and rhythm. The sound of the words, the rhythm of the lines, and the emotional atmosphere created by these elements and the literary devices poets use, compress whole stories into a few stanzas. The specialized...
Lesson Planet

#### Atoms, Elements, and Isotopes

For Teachers 9th - 12th Standards
Rings and golden nuggets contain the element gold, but how small can you break it down before it is no longer considered gold? A helpful presentation explains the basics about atoms, elements, and isotopes through a presentation.
Lesson Planet

#### Discovering Math: Concepts in Geometry

For Teachers 8th - 12th
Middle and high schoolers explore the concept of proving the Pythagorean Theorem. They research proofs of the Pythagorean Theorem. Pupils create posters of proofs, and research Greek mathematicians.
Lesson Planet

#### Graphing Old Man's Journey

For Teachers 5th
Fifth graders study graphs and storytelling. In this mathematics lesson, 5th graders discuss the features of line graphs and create a line graph representing Old Man's journey after listening to "The Creation", a story about Old Man's...
Lesson Planet

#### The Pythagorean Theorem, the Distance Formula, and Slope

For Teachers 8th - 12th
Learners explore the concept of the Pythagorean Theorem. In this Pythagorean Theorem lesson, pupils use the Pythagorean Theorem to derive the distance formula. They are given points on a coordinate grid and they find the distance between...
Lesson Planet

#### Mooring Mobiles Lab

For Teachers 6th - 8th
Oceanography experts use candy to construct a model of a bio-physical mooring that would test a variety of factors. Each piece of equipment to be included on the mooring is described within the write-up. As pupils gather the candies for...
Lesson Planet

#### The Attack of the Manhole Monsters

For Teachers 9th - 12th
Students explore the concept of similarity. They examine such topics as ratio of corresponding sides, internal ratios and scaling factors. After watching a video, student groups perform experiments outside the school building.
Lesson Planet

#### What is the Rock Cycle and Its Processes?

For Teachers 5th - 7th
Geology beginners examine three different rock samples and determine their origin by their characteristics. By making and recording observations, they become familiar with features of igneous, metamorphic, and sedimentary rock types....
Lesson Planet

#### People Changing the Atmosphere

For Teachers 4th - 6th
Students examine the cause and effects of global warming due to the greenhouse effect. A connection is made between their own behavior and its impact by keeping a Carbon Dioxide Journal.
Lesson Planet

#### Popping Up Percents!

For Teachers 6th - 8th
Middle schoolers find percents and unit price using popcorn.
Lesson Planet

#### TE Activity: Yeast Cells Respire, Too (But Not Like Me and You)

For Teachers 7th - 10th
Student observe and quantify the respiration that occurs in yeast-molasses cultures. They complete an effective experiment in order to examine how to think critically about the results.
Lesson Planet

#### Global Warming: More or Less

For Teachers 5th - 12th
Students study global warming and see how changes in the earth's temperature affect climate.  In this climate lesson students link together the chain of events and what the impact will have on the future.
Lesson Planet

#### Inclined Plane and Pulley

For Teachers 9th - 12th
Students describe how inclined plane and pulleys make work easier. In this physics instructional activity, students calculate work done and mechanical advantage of both simple machines. They collect data from the experiment and construct...
Lesson Planet

#### Ocean Temperature

For Teachers 1st - 3rd
Students investigate the effects of salt and the sun on the ocean water temperatures. In small groups they make predictions, then take the temperature of water that are fresh, salty, shady, and sunny, and combinations of the four. ...
Lesson Planet

#### Finding the Area Under A Curve with Random Probability

For Teachers 11th - Higher Ed
Young scholars explore the concept of area under a curve. In this area under a curve lesson, students find the area under a curve using the Monte Carlo method using random points and probability. Young scholars calculate the area under...
Lesson Planet

#### Congruent Triangles

For Teachers 8th - 10th
Students solve problems of triangles using congruent triangle theorems. In this geometry lesson, students find angles and sides of missing triangles.
Lesson Planet

#### The Drake Equation

For Students 9th - 11th
In this Drake Equation activity, students read about how scientists can estimate the number of intelligent civilizations that may exist in our galaxy. Students answer 7 questions about the Drake Equation and they use the internet to find...
Lesson Planet

#### Using Wisconsin Fast Plants to Teach Energy Flow into the Ecosystem

For Teachers 6th
The amazing process of a plant growing from a seed is the focus of this science lesson. Your class works in groups for a short time each day to document the growth of a plant they have sown from a seed. They utilize AlphaSmart devices,...
Lesson Planet

#### Cave Activity: Mapping Fractures

For Teachers 6th - 12th
Students tour a cave and observe fractures in the cave's ceiling. They record characteristics of the fracture. They locate three major passages in the cave and ten major fractures.
Lesson Planet

#### The Rifting of Pangaea and the Gettysburg Battlefield

For Teachers 11th
Eleventh graders analyze and interpret an animated model of Earth’s rifting processes.  In this Earth Science lesson, 11th graders connect Earth’s rifting processes with the Earth’s surface in the Gettysburg battlefield.  Students apply...
Lesson Planet

#### Seeds: How They Grow

For Teachers 3rd - 5th Standards
Students observe the growing stages of plants. In this plant growth lesson, students collect, germinate, and plant seeds to chart the growth process of plants.
Lesson Planet

#### The Pythagorean Theorem, the Distance Formula, and Slope

For Teachers 9th - 12th
Students explore the concept of the Pythagorean Theorem. For this Pythagorean Theorem lesson, students derive the distance formula and slope of a line from the Pythagorean Theorem.
Lesson Planet

#### Geo-Soccer

For Teachers 8th - 11th
Do mathematicians make the best soccer players? Pupils use area formulas and circle theorems—chord-chord, secant-secant, and secant-tangent—to design strategies that maximize goal scoring. Along the way, they review scale drawing...
Lesson Planet

#### Ground-truthing Satellite Imagery with Drifting Buoy Data

For Teachers 6th - 8th
Ground-truthing ... is it even a word? The last installment of a five-part series analyzes how scientists collect sea surface temperature data. Scholars use government websites to compare temperature data collected directly from buoys...
Lesson Planet

#### Invention Challenge

For Teachers 4th
Fourth graders discuss a problem and come up with inventions to solve the problem.  For this invention lesson, 4th graders brainstorm the kinds of solutions that might solve the problem. Students work in groups to solve problems.
Lesson Planet

#### Cell Energy-Colorful Respiration

For Teachers 6th - 8th
Students examine the acid-base indicator, bromthymol blue (BTB), and what happens to it when you blow air into it or add plants and snails. Through an experiment, they test three different setups of BTB and record the color changes that...
Lesson Planet

#### Valentine Geometry

For Teachers 9th - 12th
Students combine geometry construction skills with language arts and artistic ability.
Lesson Planet

#### Discovering Perimeters

For Teachers 6th - 12th
Students discover a formula for finding the perimeter of a rectangle by using string. After a lecture/demo, students receive a worksheet with pre-drawn rectangles so they can practice computing perimeter with their string.
Lesson Planet

#### Side Splitter Triangles

For Teachers 8th - 11th
Students investigate the side splitter theorem. In this geometry instructional activity, students estimate and solve problems dealing with ratios and proportions. They identify angles created by lines that are parallel.
Lesson Planet

#### Elevation at its Peak

For Teachers 9th - 12th
High schoolers pretend they are hiking up a mountain. They practice making calculations on angles and elevation. They use topographic maps to estimate distances and trigonometric ratio methods.
Lesson Planet

#### Mapping the Blue Part

For Teachers 8th
Eighth graders determine the location of specific features of the stimulated ocean floor. The features include the continental shelf, continental slope, an ocean trench, and a mid-oceaniz ridge.
Lesson Planet

#### Solids

For Students 9th - Higher Ed
In this solids worksheet, students review terms associated with solid matter including, freezing and melting point, viscosity, and Brownian motion. This worksheet has 1 short answer and 14 matching questions.
Lesson Planet

#### Walk a Mile in Albatross Shoes

For Teachers 3rd - 8th
Students recognize the correlation between the trash they dispose of around their school and the environmental hazards that face wildlife, specifically the Laysan albatross. They determine three ways that they can help the albatross chicks.
Lesson Planet

#### The Transformation and Use of Different Types of Energy Using Local Flora and Fauna in a Vietnam Village Setting

For Teachers 8th
Eighth graders examine the concept that the sun is the ultimate source of energy for living things. They conduct an experiment in which they roast marshmallows over a flame that has been produced from methane gas, which originates from...
Lesson Planet

#### The Water Detectives

For Teachers 9th - 12th
Students collect water samples from designated sampling stations, and discuss water pollution. They analyze the water samples, record the data on a spreadsheet, and present the environmental water quality data to the class.
Lesson Planet

#### Talk is Cheap

For Teachers 2nd
Second graders listen to the tale, "The Tortoise and the Hare" and discuss the moral of the story. Afterward, they brainstorm words that encouraged the Tortoise to accomplish his goal. Students then review the concept of goal setting and...
Lesson Planet

#### Integrating Technology: Seeing Atoms: STM

For Students 9th - 11th
In this atom activity, students learn about the scanning tunneling microscope and answer questions about its use, how it works and its ability to see electrons in atoms.
Lesson Planet

#### Magnets 2: How Strong is Your Magnet?

For Teachers 3rd - 5th
Pupils work together to test the strengths of various types of magnets. After testing, they create a graph showing how the strength changes as the distance from the magnet increases. They discuss how forces can act from various...
Lesson Planet

#### Scaling Our School

For Teachers 4th
Fourth graders practice estimating the length and height of buildings at their school. They then compare their estimations with the actual heights or lengths. Each student then builds a scale model using ratio to translate the "real"...
Lesson Planet

#### Death On Board La Belle: Finding Clues from Old Bones

For Teachers 4th - 7th
Students practice analyzing skeletal remains for clues by using the Internet.  In this scientific investigation lesson, students research the La Belle shipwreck using the Internet and written materials, later completing a Skeletal Report...
Lesson Planet

#### Discovering the Relationship Between Mass and Volume

For Students 10th - 12th
In this mass and volume worksheet, students experiment with five unknown metals and take their masses and volumes. They plot their data and use given information to identify the unknown metal based on it's mass and volume relationship.
Lesson Planet

#### Special Segments in a Triangle

For Teachers 10th
In this geometry worksheet, 10th graders review the vocabulary associated with the special segments of a triangle and the associated points of concurrency and solve problems in which they find the indicated missing angle or segment.  The...