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### We found 310 resources with the concept perpendicular lines

Videos (Over 2 Million Educational Videos Available)

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Defining Gravity

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Algebra 50 - Three Variable Systems in the...

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Three-Dimensional Coordinates and the...

Other Resource Types
(310)

Lesson Planet

#### Utah Middle School Math Project: 8th Grade

Prepare eighth graders for high school math and science classes with a collection of 10 lessons that help tweens make the transition from acquiring basic knowledge to applying it in more complex situations. These Common Core-aligned...

Lesson Planet

#### Math Antics Geometry Video Lessons

The point of this collection of 12 videos is to introduce learners to three basic parts of geometry—points, lines, and planes. The presenter provides definitions, shows how to classify shapes, provides examples, and shows how to use...

EngageNY

#### EngageNY Geometry Module 4: Connecting Algebra and Geometry Through Coordinates

Teach young mathematicians how to use coordinate geometry to program a robot that is bound in the room in which it sits . Help comes in the form of the 15 lessons in the Module 4: Connecting Algebra and Geometry through Coordinates...

Lesson Planet

#### Constructions for Perpendicular Lines

To what degree does the class understand perpendicular lines? Find out with this short and simple worksheet! Geometry scholars get the opportunity to show what they know about drawing lines and including points at different locations...

Lesson Planet

#### Transformations – Reflections

Scholars use interactive resources to figure out how to mathematically draw a reflection of a geometric shape viewed in a mirror. To conclude the activity, class members are asked to deduce the result of multiple reflections across...

Lesson Planet

#### All About Lines

This resource should be called "All About Lines, and Then Some!". Packed full of all the key components of linear functions, learners review how to set up different equations, find intercepts, and graph. All the main topics are included...

Lesson Planet

#### Algebra 1 Practice Final

What makes this resource special? The amazing answer key that comes with worked out solutions and notes for each problem. Practice problems include all topics ranging from linear systems to simplifying exponential expressions. The packet...

Lesson Planet

#### Geometry Definitions

Geometry is full of shapes, figures, and corresponding things here and there. The guide shares all of the key pieces of geometric information in a nicely color-coded and labeled sheet.

Lesson Planet

#### California State Standards: Algebra I

Starting a year of Algebra I? This mighty packet practices all of the major topics with different ranges of difficulty. Standards include everything from linear to quadratic to rational expressions. Use it in a variety of ways to...

Lesson Planet

#### SAT Prep: Test 2 Section 6 Part 5

Addressing problems 15-16 on the practice SAT, Sal draws the diagram necessary for solving the geometry problem in number 15. After solving for the area of the triangle, he goes on to the quadratic equation in number 16, taking care to...

Lesson Planet

#### The Geometry of Letters

Use the alphabet as a tool for teaching your class about geometric figures. Break apart capital letters into line segments and arcs. Classify angles as right, acute, or obtuse. Identify parallel and perpendicular lines. An excellent...

Lesson Planet

#### SAT Prep: Test 3 Section 4 Part 3

Continuing his lessons on the practice SAT, Sal takes students through problems 10-13, which involve absolute value, comparing angles in a geometric diagram, and finding the median number in a set of consecutive integers. Students will...

Lesson Planet

#### Identifying Linear Functions from Graphs

Keep your mathematicians engaged using this group linear functions activity. Each of ten groups receives two graphs with both an image and equation, as well as a "who has" phrase to call out the next graph. Scholars stay on their toes as...

Lesson Planet

#### Points, Lines, and Line Segments - Problem Solving 16.1

Fourth and fifth graders analyze a line map of some city streets. They answer five questions involving roads that are perpendicular, intersecting and parallel.

Lesson Planet

#### Indirectly Direct

Students use prior knowledge of angle and lines as they conduct an experiment with a rolling marble to determine the shape of a mystery object located under a metal pie tin.

Lesson Planet

#### SAT Prep: Test 3 Section 2 Part 4

Finding perimeters and slopes is the focus of this video, which details ways to solve problems 15-17 on the practice SAT. Even students who are confident in their ability to pass the SAT would benefit from this additional review.

Lesson Planet

#### SAT Prep: Test 2 Section 3 Part 3

Covering geometry, linear equations, and mathematical patterns, Sal discusses problems 9-12 on the practice SAT. His easygoing manner and clever calculations will keep students' interest far longer than reviewing SAT questions from a...

Lesson Planet

#### Ancient Aqueduct Analysis Project

Let the class' knowledge of geometry flow like water in an aqueduct. Future mathematicians research ancient Roman aqueducts and consider the geometric concepts necessary in their construction. They then use GeoGebra to create models of...

Lesson Planet

#### Google Earth Trip

Travel the world instantly—and learn about math along the way. Using pictures of famous places taken from Google Earth, scholars look for parallel and perpendicular lines based on slope and angle measurements. They also calculate...

Lesson Planet

#### Short Pappus

It's all Greek to me. Scholars work a task that Greeks first formulated for an ancient math challenge. Provided with an angle and a point inside the angle, scholars develop conjectures about what is true about the shortest line segment...

Lesson Planet

#### Accessible Shapes

All the 2-D and 3-D measurement work you need is in one location. Divided into three sections, the geometry lesson plans consist of visualization of three dimensions, classifying geometric figures, and finding surface area and volume....

Lesson Planet

#### Shortest Distance between Line and Point

A short video shows how to find the shortest distance between a line and a point on the coordinate plane. Using the fact the shortest distance is the perpendicular, the presenter shows the class how to find the intersection of the two...

Lesson Planet

#### Parallel and Perpendicular Lines - Part 2

Parallel and perpendicular lines aren't that difficult to find. Learners watch an instructional video to see how to write equations of lines that are parallel or perpendicular to a given line and pass through a given point. Some of the...

Lesson Planet

#### Parallel and Perpendicular Lines - Part 1

Ever ponder parallel and perpendicular lines? An engaging video first investigates how the slopes of lines indicate whether two lines are parallel or perpendicular. It goes on to show how to use the equations of two lines to tell whether...

Lesson Planet

#### Equation of a Tangent to a Circle

Don't go off on a tangent—let the video do the talking! A video lesson demonstrates how to write the equation of a line tangent to a circle given the point of tangency and the equation of the circle. The instructor explains both a...

Lesson Planet

#### Perpendicular from a Line to a Point

Take steps in the right direction. With a short demonstration, a video shows the steps to construct a perpendicular from a line to a point. Using a protractor, the narrator confirms the resulting construction is perpendicular, and then...

Lesson Planet

#### Perpendicular Through a Point on a Line

Use one construction to complete a second. The short video shows how to incorporate the steps of a perpendicular bisector to create a perpendicular to a point on a line. With their own straightedges and compasses, classmates then...

Lesson Planet

#### Module 6: Connecting Algebra and Geometry

A geometry module connects algebraic reasoning to geometry. It challenges scholars to investigate the slope criteria for parallel and perpendicular lines, prove theorems involving coordinate geometry, and write equations for circles and...

Lesson Planet

#### Module 1: Transformations and Symmetry

No need to change anything about the resource. The first of eight modules in the MVP Geometry unit focuses on transformations in the coordinate plane. It connects translations, rotations, and reflections to congruence, symmetry, and...

Lesson Planet

#### Perpendicular Lines

How are the slopes of perpendicular lines related? It turns out they are always opposite reciprocals. A video instructor emphasizes this fact with graphs, examples, and symbolic representations. He follows that instruction with...

Lesson Planet

#### Latitude and Longitude Differentiated Lesson Plan

Scholars warm-up their map skills with a discussion using location words to describe familiar places. An engaging video informs class members about latitude and longitude. Three leveled activities extend the learning experience for...

Lesson Planet

#### Perpendicular Bisectors: Lesson

Get right up and split it in half. Using a diagram, the video provides the definition of a perpendicular bisector. The portion in a playlist on basic geometry explains perpendicular bisector of a segment and of triangle sides properties.

Lesson Planet

#### Distance Between Parallel Lines: Lesson

Rely on slope when counting won't do. Using horizontal and vertical parallel lines, the presentation shows scholars how to find the distance by counting. The video uses the relationship of the slopes of perpendicular lines to find two...

Lesson Planet

#### Perpendicular Lines in the Coordinate Planes: Lesson

Get the slope right with two easy steps. By placing two perpendicular lines on the coordinate plane, the video determines the relationship of the slopes of the two line lines. The resource is a part of an informative and extensive...

Lesson Planet

#### Perpendicular Lines: Lesson

Perpendicular lines are all right. Using the definition of perpendicular, the video lesson introduces perpendicular lines.The portion a basic geometry playlist makes connections between the rules of parallel lines and perpendicular lines.

Lesson Planet

#### Home Lines

Using properties of the slopes of parallel and perpendicular lines, pupils write the equations of sides of polygons drawn on the coordinate plane. Scholars create a room following a set of requirements and determine the equations of the...

Lesson Planet

#### Fundamental Property of Reflections

What do midpoints and perpendicular bisectors have to do with reflections? Learners first reflect line segments over the x- and y-axes. Using the results, they see how the line of reflection is a perpendicular bisector for segments...

Lesson Planet

#### Forget Waldo—Where is 'the Orthocenter'?

Where is the center of a triangle? Individuals draw perpendicular lines representing the altitudes of a triangle. Finding the intersection gives the location for the orthocenter of the triangle.

Lesson Planet

#### Writing Equations for Perpendicular Lines

Make the right connections between the equations of perpendicular lines. Pupils find the equation of a line perpendicular to another line in the context of finding the equation of a side of a geometric figure. Learners write their...

Lesson Planet

#### Equation of the Normal Line at a Point

Is it normal to find a perpendicular line to the tangent line? The short video provides a problem to find the equation of the normal line to a function. Beginning with an explanation of the normal line, the 27th installment in a 31-part...

Lesson Planet

#### Parallel and Perpendicular Lines: Identify Types of Lines

Are there only three options: parallel, perpendicular, or intersecting? Scholars move a given line in an interactive to change its orientation with respect to another line. The interactive indicates whether the lines are parallel,...

Lesson Planet

#### Building Blocks of Geometry

Search high and low for geometry. Using cameras, groups scour the school campus looking for geometric figures. The goal is to collect the most points by finding the higher scoring geometric figures for each category.

Lesson Planet

#### Identify Line Types: Identify Types of Lines

If lines aren't parallel or perpendicular, then what are they? An interactive lets users rotate a line to change its orientation
with respect to another line. It then indicates whether the
lines are parallel, perpendicular, or...

Lesson Planet

#### Basic Definitions in Geometry

Can you define that basic figure? Building upon the undefined terms in geometry, the lesson defines basic geometry figures. The resource defines line segment, ray, angle, perpendicular lines, and parallel lines.

Lesson Planet

#### Back to the Basics: Constructions

Create a constructionist approach to constructions. The lesson introduces the concept and tools of constructions. Pupils use worksheets to find a method that will perform the given constructions. The teacher guides the groups and...

Lesson Planet

#### When Will We Ever Meet?

Investigate the slippery slope of parallel and perpendicular lines. The lesson explores the relationship between the slopes of parallel and perpendicular lines. Pupils use graphing calculators to graph lines with equal slopes and lines...

Lesson Planet

#### Angle Basics

Take a linear approach to acquaint the class with angles. The video introduces the idea of angles from the notion of intersecting lines. Using the idea of perpendicular lines, the resource defines right, acute, and obtuse angles along...

Lesson Planet

#### Parallel and Perpendicular Lines

Investigate parallel and perpendicular lines in the coordinate plane. Watch as the instructor demonstrates graphing the two types of lines. She highlights the patterns of the slope or steepness of the pairs of lines to make the concept...

Lesson Planet

#### Name That Triangle

Given a line segment and its perpendicular bisector, pupils visualize a triangle with the endpoints and a point on the perpendicular as its vertices. Learners determine the type of triangle formed and provide a justification for the...

Lesson Planet

#### IGD: Dropping a Perpendicular Line

Discover how circles help determine a perpendicular line. Using the applet, scholars construct the perpendicular to a line from a point. The interactive allows pupils to change the position of the line and perform each step of the...

Lesson Planet

#### Proving Slope Criterion for Perpendicular Lines 2

What can you say about lines with slopes that are opposite reciprocals? Young mathematicians write a proof about perpendicular lines. They show that if the slopes of lines are opposite reciprocals, then the lines are perpendicular.

Lesson Planet

#### Inscribed Circle Construction

Given a triangle, pupils construct a circle inscribed in the triangle. The scholars must determine what center of the circle to use and make the appropriate constructions to find it.

Lesson Planet

#### Equations of Perpendicular Lines

Investigate how the equation y = -1/x relates to perpendicular lines. Pupils align an arrow using an interactive so it is perpendicular to a bow string. A set of challenge questions helps learners discover slopes of perpendicular lines...

Lesson Planet

#### Comparing Equation of Parallel and Perpendicular Lines: Parallel and Perpendicular Lines

It seems perpendicular lines have slopes which follow a specific rule. Scholars use an interactive to investigate this rule by moving a pair of lines on a coordinate plane. They find that perpendicular lines have slopes that are opposite...

Lesson Planet

#### Definition of Perpendicular Lines

Get the right definition of perpendicular lines. The short assessment asks pupils to draw a pair of perpendicular lines and label them. The scholars develop a definition of perpendicular lines that contains the right amount of...

Lesson Planet

#### Define a Reflection

Develop a definition based upon the performance. Using a line and a point, pupils reflect the point across the line. The learners use the steps in creating the reflection to develop a precise definition of a reflection.

Lesson Planet

#### Constructing a Tangent Line

Make sure scholars haven't gone off on a tangent by having them construct one! The worksheet contains one question with multiple steps of justification needed, giving you an in-depth look into class members' level of comprehension. Use...

Lesson Planet

#### Transformations and Symmetry

Flip, turn, and slide about the coordinate plane. Pupils define the rigid motions and experiment with them before determining the relationships of the slopes of parallel and perpendicular lines. The sixth unit in a nine-part series...

Lesson Planet

#### Connecting Algebra and Geometry

Connect algebra and geometry on the coordinate plane. The eighth unit in a nine-part integrated course has pupils develop the distance formula from the Pythagorean Theorem. Scholars prove geometric theorems using coordinates including...

Lesson Planet

#### Slope

What does slope have to do with lines? Pupils work with lines and determine the slope of the lines informally and with the slope formula. Groups use their knowledge to calculate the slopes of parallel and perpendicular lines. They also...

Lesson Planet

#### Constructions

Pupils learn the steps for basic constructions using a straightedge, a compass, and a pencil. Pairs develop the skills to copy a segment and an angle, bisect a segment and an angle, and construct parallel and perpendicular lines.

Lesson Planet

#### Graphing Parallel and Perpendicular Lines

What do parallel and perpendicular lines have to do with slope? The video highlights the importance of slope when graphing parallel and perpendicular lines. The instructor shows several examples of lines that are parallel and...

Lesson Planet

#### Graphing Equations on the Cartesian Plane: Slope

Slopes are not just for skiing. Instructors introduce class members to the concept of slope and teach them how to calculate the slope from a graph or from points. The lesson also includes the discussion of slopes of parallel and...

Lesson Planet

#### Perpendicular and Parallel Lines

Provide the definitions of parallel and perpendicular lines, as well as the relationships between their slopes. Two examples explain the process of finding the equation of either a perpendicular or parallel line to another line through a...

Lesson Planet

#### Classifying Equations of Parallel and Perpendicular Lines

Parallel parking might be difficult, but finding parallel lines is fairly simple. In this lesson plan, learners first complete an assessment task involving parallel and perpendicular lines in the coordinate plane. Individuals then take...

Lesson Planet

#### Representations of a Line

Line up to learn about lines! Scholars discover how to express patterns as linear functions. The workbook then covers how to graph and write linear equations in slope-intercept form, as well as how to write equations of parallel and...

Lesson Planet

#### Parallel and Perpendicular Lines

Enhance your class's understanding of linear equations by extending their study to parallel and perpendicular lines. Young mathematicians learn the relationship between the slopes of parallel and perpendicular lines. They then use that...

Lesson Planet

#### Expressing Geometric Properties with Equations

Algebra and geometry are not interchangeable. Demonstrate why not with a series of problems that deal with the equations of circles and equations of lines that meet specific criteria.

Lesson Planet

#### Vocabulary Representation (Grade 5)

Support math vocabulary with a reference sheet designed for fifth grade scholars. Three pages offer 13 terms accompanied by their definition and a picture representation. Terms include equation, perpendicular, ordered pair, and more!

Lesson Planet

#### Vocabulary Representation (Grade 4)

Reinforce fourth grade math vocabulary with a reference page offering eighteen terms. Each word is presented in bold lettering and accompanied by a definition and picture representation. Terms include number lines, supplementary angles,...

Lesson Planet

#### Vocabulary Representation (Grade 3)

Never forget a math term with a reference sheet highlighting vocabulary found in a third grade curriculum. Three pages offer nineteen words each with a detailed definition and picture representation. Terms include ten frame, the...

Lesson Planet

#### Parallel and Perpendicular Lines Worksheet

Take the work out of activity and give young mathematicians time to practice with lines, systems of equations, and special lines. It is a great activity that includes questions on all the main topics of linear equations.

EngageNY

#### The Distance from a Point to a Line

What is the fastest way to get from point A to line l? A straight perpendicular line! Learners use what they have learned in the previous lessons in this series and develop a formula for finding the shortest distance from a point to a...

EngageNY

#### Motion Along a Line – Search Robots Again

We can mathematically model the path of a robot. Learners use parametric equations to find the location of a robot at a given time. They compare the paths of multiple robots looking for parallel and perpendicular relationships and...

EngageNY

#### Parallel and Perpendicular Lines

Use what you know about parallel and perpendicular lines to write equations! Learners take an equation of a line and write an equation of a line that is parallel or perpendicular using slope criteria. They then solve problems to...

EngageNY

#### Equations for Lines Using Normal Segments

Describing a line using an algebraic equation is an essential skill in mathematics. The previous lesson in the series challenged learners to determine if segments are perpendicular with a formula. Now they use the formula to determine...

EngageNY

#### Segments That Meet at Right Angles

Can segments be considered perpendicular if they don't intersect? Learners look at nonintersecting segments on the coordinate plane and make conclusions about the lines that contain those segments. They determine if they are...

EngageNY

#### Criterion for Perpendicularity

The Pythagorean Theorem is a geometry pupil's best friend! Learners explain the equation a1b1 + a2b2 = 0 for perpendicular segments using the Pythagorean Theorem. They are able to identify perpendicular segments using their endpoints and...

EngageNY

#### Designing a Search Robot to Find a Beacon

Build right angles using coordinate geometry! Pupils explore the concept of slope related to perpendicular lines by examining 90-degree rotations of right triangles. Learners determine the slope of the hypotenuse becomes the opposite...

Lesson Planet

#### Lines and Angles

Why was the obtuse angle upset? Because it was never right! A valuable resource is loaded with background information on types of angles and lines. Learners review the characteristics of parallel, perpendicular, and intersecting lines,...

Lesson Planet

#### Unit 5 Math Vocabulary Cards (Grade 6)

Acute angle, line of symmetry, and vertex are a few terms you'll find in a set of 90 flashcards designed to reinforce math vocabulary. Included in the set are two types of cards; a word card printed in bold font, and a definition card...

Lesson Planet

#### Assessment For The California Mathematics Standards Grade 6

Test your scholars' knowledge of a multitude of concepts with an assessment aligned to the California math standards. Using the exam, class members show what they know about the four operations, positive and negative numbers, statistics...

Lesson Planet

#### Assessment For The California Mathematics Standards Grade 4

Have scholars show what they know with a 20-page assessment aligned to the California State Standards. The test covers concepts such as large and whole numbers, all four mathematical operations, fractions, decimals, geometric figures,...

Lesson Planet

#### Parallel and Perpendicular Lines Worksheet

With the focus being on parallel, perpendicular, or neither type, practice with three different types of problem solving. Learners start with a simple skill of determining the relationship between slopes and then work towards creating...

Lesson Planet

#### Geometry for the High School Classroom

What does it mean for apples to have chirality? This and other explorations in geometry, such as tiling the plane, boxing a tetrahedron, and investigating Euclid's Characteristic, are included in this resource on Euclidean geometry....

Lesson Planet

#### Slope of Parallel and Perpendicular Lines

Parallel or perpendicular? It's a slippery slope. This inquiry-based lesson focuses on the slope relationships between parallel and perpendicular lines. Class members follow the day-to-day layout of instruction activities and after the...

Lesson Planet

#### Shortest Line Segment from a Point P to a Line L

One of the hardest skills for many young geometers to grasp is to move beyond just declaring obvious things true, and really returning to fundamental principles for proof. This brief exercise stretches those proving muscles as the class...

Lesson Planet

#### Module 7: Connecting Algebra and Geometry

The coordinate plane links key geometry and algebra concepts in this approachable but rigorous unit. The class starts by developing the distance formula from the Pythagorean Theorem, then moves to applications of slope. Activities...

Lesson Planet

#### End-of-Year Practice Test (Grade 4 Math)

The end of the year is approaching and that it's time find out what your fourth grade mathematicians have learned over the past few months. Offering a new take on standardized testing, this Common Core-designed assessment includes both...

Lesson Planet

#### Basic Geometry Terms

Set your pupils up to start on geometry by teaching them some introductory terminology. Pupils learn the terms by reading a short passage and looking at examples. They then respond to five questions related to the text.

Lesson Planet

#### Safe Crossings

Learners join a task force and learn, “It’s a tool not a toy”, and “safety first,” in this worthwhile geometry task where they are asked to collaboratively construct the plans for a pedestrian bridge that connects two walkways over a...

Lesson Planet

#### Study Jams! Types of Lines

Get jamming with lines and sing along to this karaoke that reviews the main types of lines. Your learners can't forget the main properties of lines when they sing the chorus on the karaoke song after the included slide show. The slides...

Lesson Planet

#### What are Perpendicular Lines?

By definition, perpendicular lines intersect and form a 90 degree right angle. Want to know how to determine if lines are perpendicular based on two linear equations? Check out their slope values. Are they negative reciprocals? Does...

Lesson Planet

#### How Do You Find the Slope of a Line If You Have a Perpendicular Line?

What kind of lines have slopes that are the opposite reciprocal of each other? Parallel lines? No. Parabolas? No. Perpendicular lines? Yes! Watch and listen as the instructor demonstrates how to make these determinations about...

Lesson Planet

#### How Do You Find the Volume of a Triangular Pyramid?

Instruct your class on how to find the volume of a triangular pyramid using this tutorial. Learners can watch the video and take notes, later applying what they have seen to class work or homework. A clear video with direct instruction,...

Lesson Planet

#### How Do You Find the Area of a Triangle?

The formula for the area of a triangle is: area equals one half the base times the height. If you have been given these two values then all you need to do is plug them into the formula and solve. Don't forget to write the correct ending...

Lesson Planet

#### How Do You Find the Area of a Trapezoid?

Trapezoids can be tricky! Break down the process of finding the area of a trapezoid with an engaging math video. Learners explore area formula and shown exactly how to plug in information, solve, and simplify.

Lesson Planet

#### What are Perpendicular Lines?

Perpendicular lines intersect to form right angles - four of them to be exact. Vertical angles, congruent angles, 90 degrees each, these are some of the special properties of perpendicular lines. Watch this video to find out a couple...

Lesson Planet

#### How Do You Find the Volume of a Rectangular Pyramid?

How do you find the volume of a rectangular pyramid? Watch this video and find out! In the tutorial, a lecturer works through an example problem. While she works, she describes each step and each formula necessary to solve the problem. A...

Lesson Planet

#### How Do You Find the Volume of a Triangular Pyramid?

Lesson Planet

#### How Do You Find the Volume of a Rectangular Pyramid?

Lesson Planet

#### How Do You Find the Area of a Trapezoid?

Trapezoids can be tricky. Break down the process of finding the area of a trapezoid with this video! Viewers are given information about the area formula and shown exactly how to plug in information, solve, and simplify. This is a...

Lesson Planet

#### Parallel and Perpendicular Lines: Unity and Variety

Combine math and art by getting your class create a painting with parallel and perpendicular lines. Youngsters design a picture using multiple lines in a variety of thickness and color. They find parallel and perpendicular lines in real...

Lesson Planet

#### Parallel and Perpendicular Lines and Lines of Symmetry: Rhombus Shadowing

Fifth graders demonstrate different types of lines using movement. In this line and movement lesson, 5th graders demonstrate parallel and perpendicular lines, and lines of symmetry using dance movement. They also demonstrate rhombus...

Lesson Planet

#### Call it "Macaroni"

Who knew there were so many fun educational opportunities featuring pasta? Scholars read a brief informational text about the history of pasta (note that "macaroni" is spelled two different ways, so address this if kids are reading...

Lesson Planet

#### Mirror, Mirror on the Wall: Reflections of Light

Why can we see our reflection in a window but not a brick wall? Young physicists learn the Law of Reflection and various light properties that help them answer this and other questions about reflection. Use the PowerPoint to introduce...

Lesson Planet

#### Review Linear Equations

Explore algebra I/algebra II with this series of worksheets. Pupils write linear equations in slope-intercept and standard form, graph linear equations, and apply linear equations to real world applications. The six-page activity...

Lesson Planet

#### Lesson Plan: I Can Name That Angle in One Measure!

In this angle lesson, eighth and ninth graders explore angles made using parallel lines and a transversal. They identify the types of angles and the characteristics of each one. Puils create drawings that illustrate angle relationships...

Lesson Planet

#### Basic Concepts - Reteach 14.1

Learners draw and label 8 geometric figures when given the labels. Definitions of basic geometric figures are given. Some of the questions deal with parallel lines, perpendicular lines, and the vertex of angles and rays.

Lesson Planet

#### Lines, Line Segments, Rays and Angles - Homework 15.1

Here is an identifying lines, line segments, rays, and angles worksheet which has learners identify the figures by telling whether figures are right angles, less than a right angle, or greater than a right angle, identifying lines as...

Lesson Planet

#### Points, Lines, and Line Segments - Practice 16.1

Fourth and fifth graders use words and symbols to name 4 figures. They label lines as parallel, intersecting, or perpendicular in the next three questions before drawing three examples of their own. They complete two test prep question...

Lesson Planet

#### Lines in the Alphabet Soup - Enrichment 16.2

Elementary schoolers examine a bowl of alphabet soup and follow the directions to group the letters. They group letters that contain perpendicular, parallel, and non-perpendicular intersecting lines. They determine which letters have...

Lesson Planet

#### Lines to Design

In this geometry worksheet, upper graders use pattern blocks as a basis for identifying lines, angles, and shapes. Then they compare and contrast properties of various two-dimensional shapes. Pupils also create a block quilt from paper...

Lesson Planet

#### Lines and Angles

Learners analyze the examples of lines and angles. They label 16 pictures of lines or angles with the correct term.

Lesson Planet

#### Parts of an Angle

Learners review the line segments and rays. In this identifying angles lesson, they define the word vertex and describe how angles are formed. Pupils show the parts of an angle and name them.

Lesson Planet

#### Basics Concepts - Practice 14.1

Learners draw and label 12 different geometric figures which include lines, line segments, angles, and ray. They answer six questions where they are given labeled geometric figures and write the name and symbol for each figure. Pupils...

Lesson Planet

#### Don't Mangle That Angle - Enrichment 14.1

Clever! Supposedly a strong wind blew the letters off of a classroom bulletin board, and now learners connect them according to directions listed. As a result, they end up drawing a line segment, ray, intersecting line, angles, and...

Lesson Planet

#### Lines, Line Segments, Rays and Angles - Reteach 15.1

Upper graders answer four questions where they identify geometric figures as lines, line segments or rays. Next, they answer questions where they identify lines as parallel, intersecting, or perpendicular. Definitions and drawings of...

Lesson Planet

#### Lines, Line Segments, Rays, and Angles - Practice 15.1

Is it a line, line segment, ray, or angle? Identifying geometric figures is the focus. In addition to identification, learners recognize right angles or tell if an angle is less than or greater than a right angle. They tell if lines are...

Lesson Planet

#### "Polly"gon Pockets

Explore polygons with your elementary learners. Divide the class in 12 to configure the polygon puzzle before them. They list the attributes of each type of polygon they see, and if there's time, they jump on the interactive website...

Lesson Planet

#### Points, Lines, and Line Segments - Reteach 16.1

In this geometry instructional activity, youngsters review a chart at the top of the page that includes the definitions of point, line, line segment, parallel lines, intersecting lines, and perpendicular lines. They apply the definitions...

Lesson Planet

#### Points, Lines, and Rays - Problem Solving 15.1

Here is a set of five word problems in which geometers draw and identify points, lines, segments, rays. They determine if lines are perpendicular or parallel. This is a concise, yet applicable worksheet to help learners grasp the...

Lesson Planet

#### Proving Slope Criterion for Perpendicular Lines 1

See how perpendiculars have special slopes. Scholars prove that if two lines are perpendicular, then their slopes are opposite and reciprocal. They use a two-column proof. applying knowledge of rotations and slopes.

Lesson Planet

#### Parallel and Perpendicular Lines

Young geometers get some solid skills practice in evaluating slopes. Beginning with the basics of slope through two points and progressing through properties of parallel and perpendicular lines, the building of skills is gradual and...

Lesson Planet

#### How Do You Find the Height of a Triangle if You Know the Area and Base?

Use the formula for the area of a triangle to find the height of the triangle. If the problem gives the value of the area and the value of the base, then the height can be found using the formula for the area of a triangle. The...

Lesson Planet

#### How Do You Use Complementary Angles to Find a Missing Angle?

Are complementary angles nice to each other? That's not what complementary means in math. Complementary angles are two angles that add up to 90 degrees and form a right triangle. So if given one value in a problem about complementary...

Lesson Planet

#### Parallel and Perpendicular Lines

In this college level mathematics worksheet, students determine if lines are parallel or perpendicular and write the equation of a line described by a given set of conditions. The two page worksheet contains forty=two problems. Answers...

Lesson Planet

#### Semester 1 Review for Geometry final

In this geometry worksheet, 10th graders solve problems that are based on the topics covered in a first semester geometry class, including, linear equations and the equations of parallel and perpendicular lines, the logic of geometry,...

Lesson Planet

#### Worksheet 6 - Vector

In this vector worksheet, students draw simple pictures, identify the positions of the vectors, write equations to describe vector location. This two-page worksheet contains four multi-step problems.

Lesson Planet

#### Supplementary, Complementary, And Vertical Angles

Middle and high schoolers construct parallel lines cut by a transversal using the Geometer's Sketchpad. They measure angles formed, compare angle measurements, explore various activities on Geometer's Sketchpad, and complete a worksheet.

Lesson Planet

#### Parallel and Perpendicular Lines

Here is a parallel and perpendicular lines worksheet which has learners respond to 10 questions that require them to identify lines and draw lines.

Lesson Planet

#### Lines, Lines, Everywhere

Students explore linear equation suing real life scenarios. In this algebra lesson, students find the slope and intercept of a line. They create table of values to plot their graph and draw conclusions.

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#### Ruler and Compass Constructions

Fourth and fifth graders examine how to construct perpendicular lines and to bisect angles using rulers and compasses in this unit of lessons. They design a number of polygons using these methods.

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#### Points, Lines, and Planes

Upper graders identify locations within environments. In this location elements lesson, learners complete activities to help them locate various points, lines, and planes within a given environment. They sort lines to identify them as...

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#### Visualizing Congruent Line Segments

Fourth and fifth graders explore geometric shapes by identifying congruent lines. In this length measuring lesson, learners view shapes of rectangles, squares and line graphs, identifying the congruency of specific segments. They...

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#### Angles and Geometry Activity

Get your pupils out of their seats by having them create a cheer complete with arm movements that demonstrate various angles. Working in small groups either during class or recess, young geometers are tasked with having to create a cheer...

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#### Identifying Perpendicular, Parallel and Intersecting Lines

Mathematicians explore perpendicular, intersecting and parallel lines. In this geometry lesson, they view a map and identify the intersections. They also identify the parallel avenues on the map. This is a nice lesson that incorporates...

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#### Points, Lines, and Line Segments - Homework 16.1

In this geometry worksheet, students complete a homework assignment in which they name 3 lines and line segments. They write parallel, intersecting, or perpendicular, to describe the relationships between 4 pairs of lines. They draw an...

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#### Other Equations of Lines

In this algebra worksheet, students find equations for 4 lines when given their slope and one point on the line. They write two linear equations when given two points on a line. Students analyze the equations of 3 sets of linear...

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#### Perpendicular Lines

In this perpendicular lines practice worksheet, young scholars find and list examples of perpendicular lines at home, at school, and outside.

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#### Systems of Equations

This is a large unit on the study of the systems of linear equations, solving and graphing. Understanding solutions graphically, and algebraically, learners solve equations by graphing, substitution, and elimination. Real-world problems...

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#### Graphing Special Lines

In this graphing special lines worksheet, students solve 18 short answer and graphing problems. Students graph lines given two points. Students find the slope of a line given two points. Students determine if two lines area parallel,...

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#### Take Home Question

In this slope and perpendicular lines instructional activity, high schoolers solve 5 short answer problems. Students find an unknown coordinate given two points, a perpendicular line, and a slope. High schoolers find the centroid of a...

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#### Proving Lines Parallel Homework

In this parallel lines worksheet, students solve 13 short answer and fill in the blank problems. Kids determine which lines are parallel given a statement such as if these angle measures are equal then which lines are parallel? Students...

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#### Geometric Mean Homework

In this geometric mean worksheet, students find the geometric mean of given data. They examine right triangles. This one--page worksheet contains 10 problems.

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#### Parallel and Perpendicular Lines

In this parallel and perpendicular lines worksheet, students identify angles formed by these lines. They list and find the measurement of interior angles, exterior angles, alternate interior, alternate exterior and corresponding...

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#### Regents Exam Questions G.G.9: Planes

In this planes worksheet, students solve 3 short answer problems. Students determine a true statement given lines perpendicular to a plane.

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#### Lines and Line Segments

Fifth graders use visuals and their bodies to create lines and line segments. In this line segment lesson, 5th graders describe points that make a line. Students participate in an activity to cut and paste various lines.

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#### IGD: Perpendicular Bisector

Students draw perpendicular bisectors. In this perpendicular bisectors lesson, students identify the perpendicular bisector in a polygon. They use web tools to create and measure perpendicular bisectors. Students identify lines of...

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#### Geometric Relations

Students identify the different angles formed when parallel lines are cut by a transversal. In this geometry lesson, students define the relationship between pairs of angles formed by a transversal.

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#### Is This Assignment On The Level?

Learners identify angles formed when two line are cut by a transversal. In this geometry-instructional activity, students find the missing angles using linear pairs, corresponding angles, and other parallel lines properties.

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#### Lines in the Plane

Students differentiate between parallel and perpendicular lines. In this algebra lesson, students graph linear equations using the slope intercept form. They classify lines based on their slopes.

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#### The Slope of Parallel and Perpendicular Lines

In this Algebra I/Algebra II worksheet, students examine slope to determine if the given lines are parallel or perpendicular. Students determine the equation of lines that are either parallel or perpendicular to the given line. The two...

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#### Parallel and Perpendicular Lines

In this Algebra I/Algebra II/Geometry learning exercise, students examine the slopes of parallel and perpendicular lines and the relationship to the equation of the line. The four page learning exercise contains explanation of topic,...

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#### Parallel and Perpendicular Lines

In this algebra/geometry worksheet, students investigate the slopes and equations of parallel and perpendicular lines. The two page worksheet contains a combination of eleven multiple choice and free response questions. Solutions are...

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#### Algebra I - Worksheet G12: Graphing Lines

In this graphing lines worksheet, students graph 28 lines given various data. Students graph lines given two points, a point and slope, and a line perpendicular or parallel to a point.

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#### Geometric Figure Quiz

In this geometric figure worksheet, students answer 10 multiple choice questions about geometric figures. Students find missing angles, interior angles, properties of polygons, etc.

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#### Parallel, Perpendicular and Intersecting Lines

In this relationship of lines activity, students decide if 8 pairs of linear equations will create lines that are parallel, perpendicular, or intersecting.

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#### Identify Parallel/Perpendicular/Intersecting Lines

For this identifying lines worksheet, students examine given diagrams. They identify parallel, perpendicular, and intersecting lines. This two-page worksheet contains 10 problems. Answers are provided on the last page.

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#### Parallel and Perpendicular Lines

Tenth graders explore parallel and perpendicular lines. In this geometry lesson, 10th graders investigate the relationships associated with parallel lines and transversals, perpendicular lines, and the angles formed by these lines. ...

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#### Construction of a Rectangle and Investigating its Properties

Young scholars construct rectangles using Cabri Jr. In this rectangles lesson, students discover the properties of rectangles by measuring angles and side lengths of their constructions. Young scholars construct and measure the...

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#### Finding the Orthocenter

Students explore the concept of finding the orthocenter of a triangle. In this finding the orthocenter of a triangle lesson, students construct a triangle on their Ti-Nspire. Students construct perpendicular lines within the triangle...

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#### Constructing an Ellipse

Students explore the concept of ellipses. In this ellipses activity, students construct ellipses on their Ti-Nspire. Students plot two foci and then construct an ellipse. Students determine the the semi-major and semi-minor axis of...

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#### Pyramid Activity

Pupils explore the concept of pyramids. They determine if two sides of a pyramid are perpendicular using a graphing calculator, then discuss parallel and perpendicular lines and how to determine if two lines are parallel or...

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#### Parallel, Perpendicular and Intersecting Lines

In this parallel, perpendicular and intersecting lines worksheet, students analyze the slopes of given lines and determine if the lines are parallel, perpendicular or intersecting. This five-page worksheet contains approximately 25...

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#### Linear Functions

In this linear function worksheet, learners examine graphs and determine the slope, the y-intercept and the equation of a line. They identify parallel and perpendicular lines. This two-page worksheet contains 3 multi-step problems.

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#### Proving That Lines are Parallel

In this parallel lines worksheet, students identify parallel lines and use the measurements of congruent angles to explain why lines are parallel. They use theorems about parallel lines to complete proofs. This three-page worksheet...

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#### 5.6 Parallel and Perpendicular Lines

For this parallel and perpendicular lines worksheet, students find the slope of a line that is perpendicular or parallel to a given line. They write a linear equation in point-slope form that fits given parameters. This one-page...

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#### Practice Masters Level B: Parallel & Perpendicular Lines

In this parallel and perpendicular line worksheet, students write a linear equation in the point-slope form to meet given conditions. They find the slope of a line. This one-page worksheet contains 17 problems.

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#### Classifying Angles

In this classifying angles learning exercise, 10th graders solve and complete 35 various types of problems. First, they match each type of angle with its correct description. Then, students determine whether the given lines or planes are...

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#### Lines and Line Segments

In this lines and line segments instructional activity, learners solve 6 word problems where they identify lines and line segments, draw rectangles made of line segments, and define perpendicular and intersecting lines. The problems...

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#### Hands On: Construct Parallel and Perpendicular Lines

In this parallel and perpendicular lines learning exercise, students solve 6 word problems where they must construct parallel and perpendicular lines, or identify parallel and perpendicular lines in figures. Students must explain the...

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#### Writing Linear Equations

For this writing linear equations worksheet, 9th graders solve and complete 20 various types of problems. First, they state the slope and y-intercept of the graph of each equation. Then, students write an equation in slope-intercept form...

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#### Quadrilaterals

In this quadrilaterals worksheet, 10th graders solve and complete 34 various types of problems. First, they fill-in the family tree with the names of the shapes of quadrilaterals shown. Then, students list the quadrilaterals that have...

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#### Functions and Relations

For this functions and relations worksheet, 11th graders solve and complete 15 various types of problems. First, they find the slope and y-intercept for each function given. Then, students find the slope of the line passing through the...

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#### Area, Perimeter, Volume, Surface Area

For this area, perimeter, volume and surface area worksheet, 10th graders solve and complete 14 various types of problems. First, they identify and define basic formulas and geometry terms. Then, students find the perimeter, area or...

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#### Midpoints

In this midpoints learning exercise, 10th graders solve and complete 10 different problems. First, they find the perimeter of each illustrated triangle. Then, students determine the bases and median of a trapezoid. They also prove that...

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#### Right Triangles

In this right triangles instructional activity, 10th graders solve and complete 12 various types of problems. First, they solve for x given each of the right triangles shown. Then, students determine the length of the shorter diagonal...

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#### Angle Bisectors

For this angle bisector worksheet, 10th graders solve and complete 23 various types of geometry problems. First, they find the angles listed in the figure shown. Then, students determine the sum of the interior angles of a polygon. They...

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#### Parallelograms

In this parallelograms worksheet, 10th graders solve and complete 24 various types of problems. First, they find the length of the altitude to the hypotenuse of a right triangle. Then, students find the circumference of a circumscribed...

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#### Lines, Angles and Points Review

In this lines, angles and points review set of worksheets, 10th graders solve and complete 102 various types of multiple choice problems. First, they use the given figures to name an example of collinear points. Then, students refer to...

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#### Paragraph Proofs

In this paragraph proofs worksheet, 10th graders solve and complete 6 different problems that include proving various types of triangles. First, they label each diagram shown. Then, students write the given information and use the given...

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#### Theorems of Parallel and Perpendicular Lines

In this theorems worksheet, 10th graders solve and complete 10 different problems related to various parallel and perpendicular lines. First, they explain how they can tell that a line is parallel to another line. Then, students use the...

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#### Geometric Figures Review

In this geometric figures review instructional activity, 10th graders solve and complete 100 various types of problems that includes a complete review of all geometry. First, they name a theorem or postulate that justifies the congruence...

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#### Triangulation Experiment

For this triangulation worksheet, students solve and complete 11 steps of an experiment to determine the distance to a far away object using triangulation and trigonometry. First, they select a far away object and create a baseline far...

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#### Geometry Review

In this geometry review worksheet, 10th graders solve and draw 33 various types of problems that include determining various angles of measure and the difference between parallel and intersecting lines. First, they use the diagram...

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#### Tangents, Secants, and Chords

In this tangents, secants and chords worksheet, 10th graders identify and solve 48 different problems that include using 3 different theorems for defining circles. First, they determine the area of each circle with C as the center and a...

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#### Slopes Puzzle

In this slopes puzzle worksheet, students solve and complete 16 different problems that include determining various slopes of equations. First, they cut apart each of the pieces shown. Then, students use the slopes of each linear...

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#### Circles

In this circles worksheet, 10th graders solve 10 different problems that include determining the chords, secants, and tangents of circles shown. First, they determine 4 different line segments given a circle with secants and chords with...

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#### Measurement

In this measurement worksheet, 7th graders solve 14 various types of problems that include completing a table with the base, height, and/or area of triangles and solving a number of word problems with measurement. They also estimate the...

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#### Analytic Geometry

In this analytic geometry worksheet, 9th graders graph and solve 13 different types of problems that include determining whether equations are linear to matching given equations to their corresponding equation in the second column....

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#### Parallel and Perpendicular Lines

In this parallel and perpendicular line instructional activity, learners find equations of a line, then determine an equation of a line that is parallel or perpendicular to the original one. They graph problems and plot points. There are...

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#### Parallel & Perpendicular Lines

In this geometry learning exercise, 4th graders list the lines that are parallel or perpendicular to each other. Then they mark with one color the line segments that are parallel and another color those that are perpendicular.

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#### Dichotomous Keys

Students define the word dichotomous and explain why a dichotomous key is a useful tool in identifying different species. Then they look up words they are unfamiliar with or mollusk reference books so students can
learn the names of...

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#### 2-D and 3-D Presents at Pedro's Party

Fifth graders draw 2-D and 3-D shapes. They sketch and label geometric figures with correct terminology, then explore parallel and perpendicular lines. Pupils sort and classify shapes drawn.

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#### Rotational Symmetry

In this rotational symmetry worksheet, 10th graders identify and compare 10 different figures illustrated on the sheet. They write the order of rotational symmetry seen in each figure as compared to the others. They also define an object...

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#### Geometry Lesson 7: Line Segments And Angles

Fourth graders examine and identify line segments and angles using dot paper to draw them. They look at vertical, horizontal, intersecting, parallel and perpendicular lines, draw right angles and angles that are greater than and less...

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#### Linear Equations

In this algebra worksheet, students solve and graph linear equations. They differentiate between parallel and perpendicular lines. There are 35 questions about graphing.

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#### Parallel and Perpendicular Lines and their Angles

In this parallel and perpendicular worksheet, learners complete word problems involving parallel and perpendicular lines and their angles. Students complete 11 problems.

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#### Conjecture about Circles and Chords

For this geometry worksheet, high schoolers use their previously learned knowledge of perpendiculars, equations, and midpoints to predict information properties of a circle and a chord. There are 15 questions.