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Lesson Plan
Curated OER

Exploring Polygons and The Greedy Triangle

For Teachers 1st - 3rd
Excellent lesson! Anne Linehane's geometry story, The Greedy Triangle, offers an opportunity to practice forming various types of polygons with your learners. Using elastic bands (or Chinese jump ropes), partners form the various shapes...
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Lesson Plan
Curated OER

Writing Takes Shape!

For Teachers 4th - 8th
Students read The Greedy Triangle and discuss geometric solids. In this geometry lesson, students list the geo-solids in the world and create a graphic organizer to show where geo-solids exist.
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Lesson Plan
Curated OER

Classifying Geometric Figures

For Teachers 4th
Fourth graders recognize and classify geometric figures. In this geometry instructional activity, 4th graders read the books Shape Up and The Greedy Triangle and prepare a short report on the shapes mentioned in the text. Students...
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Lesson Plan
Curated OER

Where's My Shape?

For Teachers 1st
First graders explore geometry by reading a story with their classmates. In this shape identification lesson, 1st graders discuss the differences between two and three-dimensional figures and identify the characteristics of common...
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Lesson Plan
Curated OER

Human Geometry Book

For Teachers 3rd - 5th
Learners investigate geometric shapes. In this geometry lesson, students read the book The Greedy Triangle and define the shapes mentioned in the book. Learners make the shapes by using their bodies.
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Lesson Plan
Curated OER

Polygons, Parallelograms, Quadrilaterals- Oh My!!!

For Teachers 3rd - 5th
Learners demonstrate their comprehension of shapes and their properties. They work in small groups. Students review the following terms: property, polygon, quadrilateral, and parallelogram. They read Shape Up! Fun With Triangles and...