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Lesson Plan
Curated OER

Jack and The Beanstalk Estimation

For Teachers 2nd - 3rd
Introduce the day's lesson by reading Jack and The Beanstalk by Richard Walker, and then review the concept of area with your class. We don't always need rulers to measure, though! Teach learners how to use their hands to help us measure...
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Worksheet
Curated OER

Geometry: Calculating Perimeters

For Students 9th - 12th
In this perimeter worksheet, students find the perimeter of 3 polygons. Students find the perimeter of irregular polygons given various side lengths.
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Lesson Plan
Curated OER

Stained Glass Polygons

For Teachers 4th - 6th
Students follow directions to make a stained glass window design of regular and irregular polygons with specific geometric elements. In this geometry lesson plan, students also analyze other classmate's designs.
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Lesson Plan
Curated OER

Plane Figures

For Teachers 5th
Fifth graders create polygons requested by their teacher. In this polygons lesson, 5th graders watch a video and listen to a song about polygons. Then, students take turns labeling various polygons and practice making polygons.
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Lesson Plan
Curated OER

Chinese Tangrams

For Teachers 7th - 8th
Students research the history of Chinese tangrams and complete tangram activities. In this tangram lesson, students complete Internet research to learn the history of Chinese tangrams. Students construct a set of tangrams, compare the...
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Worksheet
Curated OER

Regular or Irregular Polygons

For Students 6th - 8th
In this geometry skills learning exercise, students respond to 6 questions that require determine whether 6 geometric shapes are regular or irregular polygons.
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Worksheet
Curated OER

Regular or Irregular Polygons

For Students 3rd - 4th
In this polygons worksheet, students decide whether each shape is a regular polygon or an irregular polygon. Students complete 6 problems.
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Lesson Plan
Curated OER

Perimeter of Polygons

For Teachers 8th
Eighth graders discuss perimeter by relating it to the path they would take while walking their dog around a park. They find the perimeter of regular polygons and one irregular polygon. Students use graph paper to draw their own examples...
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Worksheet
Curated OER

Quadrilaterals and Other Polygons

For Students 6th - 7th
In this quadrilaterals and other polygons worksheet, students name various polygons and then decide if each polygon is a quadrilateral. Students also decide is certain polygons regular or irregular.