Lesson Plan
Curated OER

Squares and Square Roots

For Teachers 8th - 10th
Students find patterns relating the lengths of the sides of squares to their areas. In this squares and square roots lesson, students draw squares and find their areas. They estimate the sides of square when given the area. Students use...
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...
Unit Plan
Curated OER

Linking Lines to Landscape

For Teachers 5th - 8th
Students evaluate art to enhance their core knowledge of fiction, American folk heroes, and the water cycle. In this art lesson, students complete a unit of activities to use art to study various topics of literature, history, and...