Lesson Plan
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Getting Familiar with Fractals

For Teachers 9th - 12th
Students use the Internet to answer lab questions about fractals, and then construct fractals using the initial stage and iteration rule. They complete tables and generate rules for the "nth" term and create their own fractals.
Worksheet
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Tessellations

For Students 10th
In this tessellations instructional activity, 10th graders solve 6 different types of tessellation problems that includes drawing. First, they define polygon, regular polygon, tessellation, regular tessellation, and semi-regular...
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Geo-Critters (Geometry Critters)

For Teachers 2nd - 5th
Students read the book The Math Curse by Jon Scieszka and study geometry. In this geometry lesson, students identify geometric shapes and their properties. Students create a geo-critter.
Worksheet
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Tangent Properties

For Students 10th
In this geometry worksheet, 10th graders solve problems based on the properties of lines tangent to one or more circles. Constructions are included. The one page worksheet contains eight questions. Answers are...
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Introduction to Polynomials

For Teachers 7th - 9th
Learners analyze the graphs of polynomial functions, examine vocabulary associated with polynomials, and determine the maximum number of real roots possible for a polynomial
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Geo Jammin' By DeSign - Day 2, Lesson 8: Can You Please Give Me Directions?

For Teachers 2nd - 3rd
Students participate in a guided reading experience by following directions to cut out tangrams. They listen to the directions and cut as the reading progresses.
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Understanding Fundamental Trigonometric Identities

For Teachers 9th - 12th
Students are introduced to the basic trigonometric identities. Using a diagram, they discover why the parts of the unit circle as named as they are and use equations to finalize the Pythagorean trigonometric identities. They also review...
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Tangent Properties

For Teachers 9th - 12th
Students explore properties of tangent lines.  In this properties of tangent lines lesson, students discuss the perpendicular relationship between a tangent line on a circle and the circle's radius.  Students use that...
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Concurrent Lines in Triangles

For Teachers 9th - 12th
Young scholars explore the concept of concurrent lines in triangles. In this concurrent lines in triangles instructional activity, students work in groups to investigate properties of concurrent lines in acute, right, and obtuse...
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Geometry, Measurement & Reasoning

For Teachers 9th - 11th
Students construct two-column proofs. In this geometry lesson, students use deductive reasoning and geometric properties to justify given geometric statements. Students compare and contrast proofs.
Lesson Plan
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Teaching the Bell Tetrahedral Kite

For Teachers 4th - 8th
Students complete readings on kite making and kite flying. They analyze how the parts of a system interconnect and influence each other. Students identifies and uses color and form in a 3D artwork.
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It's a 3-D World Out There!

For Teachers 2nd - 4th
Students construct polygons. They identify attributes of three-dimensional shapes. Students name common three-dimensional shapes. They draw three-dimensional shapes, and sort three-dimensional shapes. Students use K'NEX materials sets to...
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Transformation: Reflection

For Teachers 10th
Tenth graders identify and analyze appropriate key vocabulary terms associated with transformations and reflection. Students experience creating and recognizing reflection with hands-on manipulations. Students discover real-world...
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Ant Farm Fun

For Teachers 3rd
Third graders investigate ants and anthills in this series of lessons. They create their own Ant Farm.
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What's Your Design?

For Teachers 6th - 8th
Sixth grade young scholars: design a stained glass window, submitting their initial plan detailing the measurements of all lines and angles. Seventh grade students: create a scale drawing of their own geometric family of four members.
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Making Pictures from Smaller Shapes

For Teachers 2nd - 4th
Students investigate shapes. For this dimension and orientation of shapes lesson, students identify and color shapes, use shape stamps to form animals, glue shapes together to make other objects and describe how shapes are used.
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Inscribed Angles

For Teachers 9th - Higher Ed
Students analyze inscribed angles and intercepted arcs and explore the relationships between the two. They investigate the properties of angles, arcs, chords, tangents, and secants to solve problems involving circles.
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Math: Tangents

For Teachers 9th - 10th
Learners discover how to recognize tangents and how to use their properties. They investigate and use the properties of angles, arcs, chords, tangents, and secants. Students use two tangents and the properties of similar triangles to...
Lesson Plan
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Geo-Folder

For Teachers 2nd
Second graders create a Geo-Folder based on geometric terms and concepts. They make a Table of Contents that guides them through the process of assembling a folder of completed activities.
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Tangrams

For Teachers 4th - 11th
Students construct the tangram pieces from a square paper by following directions to fold and cut. They make observations on the pieces formed and compare how they are related to each other. They explore patterns and shapes with the...
Lesson Plan
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The Fourth Quadrant of Proportiona

For Teachers 4th - 5th
Students experiment with scale to solve a problem presented in a video clip. They determine the correct size to use when constructing a model and evaluate the use of proportions in real life applications.
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Tangram Perimeters

For Teachers 6th - 8th
Students work together to make figures out of tangram squares. In groups, they calculate the measurements they need and apply the Pythagorean Theorem. They complete a worksheet solving equations using the theorem and review their answers.
Worksheet
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Advanced Sentence Completion: 15

For Students 5th - 8th
In this sentence completion worksheet, students complete multiple choice questions where they fill in the blanks to sentences with one word. Students complete 10 sentences.
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Geometry Scavenger Hunt

For Teachers 6th - 10th
Students use the digital camera, identify geometric shapes (in nature as well as man-made), and gain a better understanding of geometric vocabulary. They search for and recognize geometric shapes in unusual settings