Interactive
Curated OER

Area of 2D Shapes Multiple Choice

For Students 7th - 10th
In this area worksheet, students compute the area of circles, parallelograms and rectangles.  This one-page worksheet contains 5 multiple-choice problems.  Answers are provided in this online worksheet.
Interactive
PBS

Pbs Learning Media: Classifying Polygons

For Students 3rd - 5th Standards
This interactive diagram focuses on sorting polygons by common properties and then you select the correct label for each section of the Venn Diagram.
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Isometric Drawing Tool

For Students 9th - 10th
This site includes an interactive math tool to create drawings on isometric dot paper. You can draw figures using edges, faces, or cubes. Rotate and color your drawings, and view them in 3D or 2D.
Interactive
GeoGebra

Geogebra: Copy of Classify Two Dimensional Figures

For Students 4th - 6th Standards
User will drag the vertices of the quadrilaterals to decide on the best possible classification.
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Shape Sorter

For Students 2nd - 8th Standards
Students learn how to categorize plane figure polygons using Venn Diagrams with this computer based tool.
Interactive
Doina Popovici

Math Play: 2 D Shapes Jeopardy

For Students 2nd - 3rd Standards
Review basic facts and properties of two-dimensional shapes in this interactive game.
Interactive
Other

Bright Productions Web Designs: Shape Game

For Students Pre-K - 1st Standards
You will enjoy this shape game. It tells you the name of a shape and all you have to do is click on the correct shape. If you get confused you can have another try.