Lesson Plan
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Secant and Secant Segments

For Teachers 9th - 10th
Students use the secant and secant segment theorem to solve problems. In this calculus lesson, students identify where the secant line crosses on a circle. They create circles and secants using cabri software.
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Amazing Consistent Ratios

For Teachers 7th - 9th
Students derive the six trigonometric identities. In this trigonometry lesson, students find the ratios of sine, cosine and tangent using the right triangle. They use properties of the Pythagorean Theorem to find the trig identities.
Worksheet
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Balance Point

For Students 10th - 12th
In this math/science activity, students find the balance point of a variety of objects, and complete ten problems. Students look at sketches of objects and calculate the balance point, and also use meter sticks and weights. This is an...
Lesson Plan
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Let's Try Various Calculations

For Teachers 2nd - 4th
Students explore math facts.  For this calculation and math facts lesson, students play a board game in which addition, subtraction, multiplication, and division math facts are practiced.  A copy of the game is included.
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School-Wide Recycling

For Teachers 4th - 7th
Students investigate recycling. In this environmental lesson, students design a recycling program for their school. Students collect data about how much recyclable materials they use in one week. Students also survey classmates about how...
Lesson Plan
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Water

For Teachers 1st - 3rd
Young scholars complete activities to examine the properties of water. In this water science lesson, students read a book about water's forms and study a map or globe of the Earth to investigate water. Young scholars discuss living...
Lesson Plan
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Tree Identification

For Teachers 9th - 12th
Students list four ways to identify trees. In this tree identification instructional activity, students use tree identification techniques such as leafs, bark, wood grain, soil type, and climate to create tables and graphs.
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Symmetry that is Basic and Beautiful

For Teachers 1st - 3rd
Learners explore lines of symmetry. In this symmetry lesson, students divide and combine shapes along basic lines of symmetry. Learners explore symmetry in real life objects.
Lesson Plan
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Similar Triangles - Applied Problems

For Teachers 9th - 12th
High schoolers differentiate between similar and congruent triangles. In this geometry instructional activity, students identify the angles of triangles using the similarity theorem. They apply concepts of triangles to the real world.
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Lesson Exchange: Polygons (Middle, Mathematics)

For Teachers 6th - 7th
Students discover the relationship between the sides of a polygon and the number of diagonals that can be drawn from one vertex, the number of triangles that those diagonals form, and the sum of the interior angles of that polygon.
Lesson Plan
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Fickled Fractions

For Teachers 6th - 8th
Young scholars explore which fractions are made real in our world. They also show the relationship of cross multiplication and equivalent fractions To reinforce fraction skills.
Lesson Plan
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Converting Units and the SR-71

For Teachers 4th - 6th
Students practice solving problems logically. Using the internet, students observe pictures and facts about the SR-71 Blackbird. They convert statistics about the aircraft. Students explore terms of flight and convert them to everyday...
Lesson Plan
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Math and Circumference

For Teachers 6th
Sixth graders explore geometry by utilizing mathematical formulas. In this circumference lesson, 6th graders identify the difference between diameter, circumference and radius in a circle. Students review the formulas for finding...
Lesson Plan
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Globe Skills Lesson 2: Paving the Way for Columbus

For Teachers 6th - 10th
Students explore the expedition of Christopher Columbus. In this geography skills lesson, students consider the technological advances that made Columbus's expedition possible as they complete a latitude and longitude activity.
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Power Metering Project

For Teachers 9th - 12th
Students collect and analyze variable data and understand the concept of electrical power.  In this energy instructional activity students use a spreadsheet to manage their data and create box plots. 
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Other Faces of Discrimination

For Teachers 9th - 12th
High schoolers explore the bullying experienced by those who graduated from one-room school houses to large high schools. In this discrimination lesson, students read the 2 provided handouts on the topic and then complete the included...
Lesson Plan
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Shapes and Patterns- Kaleidoscope

For Teachers 3rd
Third graders create art using shapes. In this shapes and patterns lesson, 3rd graders explore multiple ways of combining shapes to create new objects and art.
Lesson Plan
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Personal Body Types

For Teachers 9th - 12th
Students become familiar with four major body types; assess their own bodies, and complete an assignment showing which styles and design details would look best on different body types.
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It's all Interconnected

For Teachers 4th - 6th
Students participate in a number of activities to investigate the food web, species extinction, predators and prey, and biological diversity.
Lesson Plan
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GPS Scavenger Hunt

For Teachers 6th - 8th
Students go on a GPS scavenger hunt. They use GPS receivers to find designated waypoints and report back on what they found. They compute distances between waypoints based on the latitude and longitude, and compare with the distance the...
Lesson Plan
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TE Activity: How Fast Can a Carrot Rot?

For Teachers 6th - 8th
Students experiment to define which environmental factors favor decomposition by soil microbes. They decompose carrots in dirt, weigh the carrots periodically to determine how long it takes. They look at how engineers use this type of...
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Will it Stretch?

For Teachers 5th - 8th
Students explore elasticity and describe the effects of temperature changes on physical properties.  In this rubber band stretch lesson students complete an experimental activity and show their results. 
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Triangulation

For Teachers 9th - 12th
Students calculate the triangulation of a box. In this triangulation lesson plan, students participate in an activity to find the calculate and then perform triangulations. They create a box and use formulas to determine the...
Organizer
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Exploring the Solar System

For Students 6th
For this exploring the solar system worksheet, 6th graders use the online Gizmo then answer 14 questions and complete a chart about planets and orbits.