Activity
Mr. Martini's Classroom

Mr. Martini's Classroom: Teacher's Figure Library: Geometric Figures

For Students 3rd - 8th Standards
This interactive resource provides an example picture of the geometric figure chosen by students to review.
Interactive
Calculator Soup

Calculator Soup: Rectangle Calculator

For Students 9th - 10th
Use this calculator if you know 2 values for the rectangle, including 1 side length, along with area, perimeter, or diagonals and you can calculate the other 3 rectangle variables. A square calculator is a special case of the rectangle...
Unit Plan
Vernet -Virtual Education Resources Network

Salon Hogar: Referencia Rapida De Formulas Geometricas

For Students 9th - 10th Standards
This site provides the user with a useful reference to different geometric forms, their elements, formulas, and areas. Entirely in Spanish.
Whiteboard
ClassFlow

Class Flow: Dissection Puzzles

For Teachers 9th - 10th
[Free Registration/Login Required] If you like tangrams, you'll enjoy this flipchart. Dissect and arrange in different shapes all types of squares, triangles, and polygons.
Lesson Plan
Alabama Learning Exchange

Alex: Geometric Quilts

For Teachers 9th - 10th
Students will use a square to investigate other polygonal shapes that can be formed. Students will work with these polygons to make designs that will later constitute cooperatively designed quilts. The quilts will be made by translating,...
Handout
Other

Allmath: Math Glossary

For Students 9th - 10th Standards
Are your students having difficulty understanding math terminology? Try this A-Z glossary on math related terms. It's quick, easy to read, and very complete.