Lesson Plan
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Play Dough Day

For Teachers 12th
Twelfth graders build a model of the following figures with the base from column I and the cross-section from column II. Draw the base with labeled axes on the graph paper and construct the figure on top of the base with the play dough...
Lesson Plan
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Cones, Cylinders, Spheres

For Teachers 9th - 11th
Students classify polygons by name and shape. For this geometry lesson, students identify the lateral surface of each conic. They differentiate between cones, cylinders and spheres.
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Pyramids on Parade/Nets

For Teachers 8th - 11th
Students sketch the shape of three dimensional pyramids using nets. In this geometry lesson, students differentiate a pyramid from other three dimensional shape. They define the attributes of pyramids.
Lesson Plan
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Folding to Make Shapes

For Teachers 2nd
Second graders identify different polygons and their attributes. In this geometry lesson, 2nd graders get to know polygons by studying the vocabulary and finding polygons in their classroom. They create these shapes and then find their...
Lesson Plan
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The Greedy Triangle

For Teachers 3rd - 4th
Students discuss figures with various numbers of sides.  In this geometry lesson, students are read The Greedy Triangle by Marilyn Burns, they participate in a class discussion of many sided figures and are introduced to the term...
Lesson Plan
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Transformations-Translations

For Teachers 10th - 11th
Students perform transformations and translation on a coordinate plane. In this geometry lesson, students move shapes around on a graph identifying translation, image, and transformation. This lesson has an interactive part online that...
Lesson Plan
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A Cylinder and Its Net

For Teachers 7th - 12th
Students sketch the nets for given polygons and cylinders. In this geometry lesson, students find the measurements that correspond with prisms, cones and cylinders. they identify parts of three-dimensional shapes.
Lesson Plan
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Area of Combined Shapes - Turtle Combo

For Teachers 9th - 12th
Pupils graph polygons using the name and number of sides. In this geometry lesson, students identify the formula to calculate the area and perimeter of polygons. They relate the formula to different polygons and shapes.
Lesson Plan
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Camping with a Triangular Prism and Its Net

For Teachers 8th - 10th
Students differentiate triangular prisms from other prisms using nets. In this geometry activity, students define the properties of a triangular prism and its symmetry. They build a triangular prism moving lines around.
Lesson Plan
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Surface Area of Prisms

For Teachers 9th - 11th
Students calculate the surface area of different prisms. In this geometry lesson, students identify the shapes of solids based on the properties of that solid. They calculate the surface area using nets and properties of prisms.
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Identifying and Describing Polygons

For Teachers 8th - 10th
Students identify the different properties of polygons. In this geometry lesson, students differentiate between polygons and non-polygons. They review important vocabulary to help them understand the properties of polygons.
Lesson Plan
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Similarity and Congruence

For Teachers 9th - 12th
Pupils explore the concept of similarity and congruence. In this similarity and congruence lesson, students cut out strips of paper and form a triangle. Pupils try to prove that their triangles are congruent using the SSS theorem of...
Lesson Plan
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Compass Designs

For Teachers 8th - 10th
Students investigate the properties of two and three dimensional objects. In this geometry lesson, students differentiate polygons based on similarity and congruence. They make observation and interpret the data.
Lesson Plan
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More Prisms/Nets

For Teachers 9th - 11th
Students calculate the volume and surface are of three-dimensional shapes. In this geometry lesson, students use the nets to prove their calculations of shapes. They identify the different parts of a solid using the nets.
Lesson Plan
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Surface Area of Cones

For Teachers 9th - 12th
Students find the surface area of cones. In this geometry lesson, students calculate the dimensions of each three-dimensional shape and use the correct formula to solve the problem. They relate concepts of cones to the real world.
Lesson Plan
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Surface Area of Pyramids

For Teachers 9th - 12th
Students identify the surface area of pyramids and other polygons. In this geometry activity, students find the different measurements for the different parts of a polygon. They use the surface area formula to solve for the surface...
Lesson Plan
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Surface Area of Spheres

For Teachers 9th - 12th
Young scholars identify the properties of a sphere. In this geometry lesson, students calculate the surface area of spheres using the formula derived by nets. They identify the radius and diameter of the sphere.
Lesson Plan
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An Introductions to Congruent Polygons

For Teachers 8th - 10th
Students differentiate between similar and congruent polygons. For this geometry lesson, students define the theorems and reasons for polygons similarity and congruence. They are given pictures and patterns to differentiate and identify.
Lesson Plan
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Geometric Solids

For Teachers 4th
Fourth graders examine the properties of geometric solids. Given geometric figures, they brainstorm observations. In groups, 4th graders identify solids and discuss the physical properties. Each student creates a Venn diagram and...
Lesson Plan
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Congruence with Robot Gobot

For Teachers 8th - 10th
Students identify the properties of solids and polygons. In this geometry instructional activity, students identify the different measurements of a triangle. They use congruence parts and theorem to prove their answer.
Lesson Plan
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Triangles & Congruence, Proportions & Similarity, Right Triangle & Trigonometry

For Teachers 9th - 12th
Students are introduced to the topic of congruence and proportions in Geometry. Using technology, they construct and validate the properties of various geometric figures and identify whether it is congruent or proportion to the objects...
Lesson Plan
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Exploring Arrangements of 2, 3, 4, and 5 Cubes

For Teachers 8th - 10th
Students use problem solving skills to create various models of tricubes, tetracubes, and pentacubes. They classify the cubes into various groupings and identify them as mirror images, regular arrangements, and irregular arrangements....
Lesson Plan
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Hickory Dickory Dock

For Teachers 6th - 8th
Young scholars follow written directions to construct their own tangram. In this tangram lesson plan, students use their tangram to develop original figures that illustrate characters and/or objects from their favorite nursery rhyme....
Lesson Plan
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An Application of Congruence

For Teachers 9th - 10th
Learners solve triangles using the properties if congruency. In this geometry lesson plan, students apply congruent and similar figures to solve real world and math problems. They show they are able to follow instructions.

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