Handout
Depaul University

Depaul University: Inscribing Regular Polygons

For Students 9th - 10th Standards
In this lesson, students learn to inscribe regular polygons inside a circle.
Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Naming Polygons and Polyhedra

For Students 9th - 10th
This site gives you the prefixes for naming polygons and polyhedra.
eBook
Mathigon

Mathigon: Geometry: Polygons and Polyhedra: Quadrilaterals

For Students 9th - 10th Standards
This lesson focuses on quadrilaterals which can fall into multiple categories based on the number of sides and the angles.
Handout
CK-12 Foundation

Ck 12: Geometry: Perimeter and Area Study Guide

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This study guide looks at the definitions and units for perimeter, area, and circumference, and at the perimeter and area of different shapes, including regular...
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Area

For Teachers 9th - 10th Standards
This lesson plan helps students explore the mathematical concept of area and features resource links to further learning. CCSS.Math.Content.3.MD.C.7.a Find the area of a rectangle with whole-number side lengths by tiling it
Handout
Quia

Ixl Learning: Perimeter

For Students 3rd - 5th Standards
Brush up on your math skills relating to perimeter then try some practice problems to test your understanding.

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