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Lesson Plan
Curated OER

Measurement: Finding Areas of Rectangles

For Teachers 3rd - 5th Standards
Gardening geometers construct the formula for the area of a rectangle by viewing a video revolving around two young people, their lawn mowing business, and their need to charge by the square meter. A relevant real-life application activity!
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Lesson Plan
Curated OER

Polygons and Plane Figures

For Teachers 4th - 6th
Students choose a polygon to define and describe, and use Power Point and the Internet to present their polygon.
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Lesson Plan
Curated OER

Surface Area with Polydrons

For Teachers 3rd - 4th
Students explore measurements by analyzing geometric shapes. In this surface area lesson, students identify the terms volume, weight, perimeter and area in order to find the requested measurements of specific polygons. Students utilize...
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Lesson Plan
Improving Measurement and Geometry in Elementary Schools

The Sum of the Interior Angles of a Polygon

For Teachers 4th - 5th Standards
Junior geometers discover that polygons can be decomposed into triangles and that the number of triangles can be determined by a rule. Note that the Geometer’s Sketchpad® software is required to carry out all components of this lesson. 
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Lesson Plan
Curated OER

The Very Busy Spider

For Teachers 3rd - 4th
Youngsters explore visual arts by participating in a geometry identification activity. They read the book The Very Busy Spider and identify the techniques spiders use to create webs. Have you ever noticed that their webs are geometric...
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Lesson Plan
Curated OER

How is our place connected to other places?

For Teachers 2nd
Second graders conduct a survey, they record their data with the help of maps. They use an aerial photo or Ordnance Survey map, 2nd graders pinpoint specific places and add them to a legend using the drawing tools. Students use...
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Lesson Plan
Curated OER

Traditional American Indian Lodges

For Teachers 8th - 10th
Young scholars explore the mathematical properties of traditional American Indian lodges. They examine the effect of increasing sides of a polygon, calculate the surface area of prisms and cylinders, and construct a classroom size...
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Lesson Plan
Curated OER

Ecology - Biodiversity Lab

For Teachers 9th
Studnents examine the degree of biodiversity that exists in one's everyday environment, in order to develop an understanding of how scientists classify organisms and to explain why biodiversity is important for living things.
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Lesson Plan
Curated OER

Angles in Art

For Teachers 5th - 9th
Students utilize their handheld and the Angles program to create a non-objective artwork. Images created by famous artists who have utilized angles in their art work are examined.
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Lesson Plan
Curated OER

Nature's Polyhedrons

For Teachers 9th - 12th
Young scholars are introduced to polyhedrons through using straw models to explore geometric solids and constructing Christmas tree ornaments using Epsom salt crystals. Students will view interactive videos and investigate and retrieve...
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Lesson Plan
Curated OER

Harnessing the Wind for Electricity

For Teachers 9th
Ninth graders explain how wind can produce electricity. In this geometry instructional activity, 9th graders construct their own pin wheel turbine and calculate its power. They discuss the pros and cons of using wind generator.

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