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### Shape Cutter

Pre-K-2, 3-5, 6-8, 9-12

With this tool, you can explore how to decompose shapes and recompose
them to make other shapes. You can draw and cut shapes and also use
slides, turns, and flips to move pieces around.### Scale Factor

6-8, 9-12

Use this applet to investigate how changes in the scale factor influence
the ratio of perimeters and the ratio of areas between two figures.### Proof Without Words: Pythagorean Theorem

6-8

This applet proves the Pythagorean Theorem "without words" using geometry.### Proof Without Words: Completing the Square

9-12

This applet gives a proof of completing the square "without words" using geometry.### Product Game

3-5, 6-8

This applet is the Product Game: a fun, interactive game that exercises your skill with factors and multiples.### Personal Number

3-5, 6-8

Find your personal number using your birthday! It is the month + date + year & month × date × year.### Paper Pool

3-5, 6-8, 9-12

This applet allows you to investigate the game of Paper Pool.### Interactive Geometry Dictionary: Areas in Geometry

3-5, 6-8

The applets in this *Interactive Geometry Dictionary*(IGD) will show you how to find the area of some common shapes: rectangles, triangles and parallelograms.

### Pick-a-Path

3-5, 6-8

Help Okta reach the target by choosing a path from the top of the maze to the bottom. Seven levels with seven puzzles will test your skills with powers of ten, negative numbers, fractions, decimals, and more. How many starfish can you earn?