Lesson Plan
University of Texas

Inside Mathematics: Sorting Shapes [Pdf]

For Teachers 4th - 7th Standards
This task challenges a students knowledge of 2-dimensional geometrical shapes to sort shapes and to design a shape that has a given set of attributes.
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Cross Sections

For Teachers 9th - 10th Standards
This lesson utilizes the concepts of cross-sections of three-dimensional figures to demonstrate the derivation of two-dimensional shapes.
Lesson Plan
Better Lesson

Better Lesson: Introduction to Angles

For Teachers 2nd
See this lesson to help students to learn about angles and identify the number of angles in 2D shapes. Lesson plans includes introductory activity, guided practice, and independent practice.

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