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Fraction Models

3-5, 6-8
Explore different representations for fractions including improper fractions, mixed numbers, decimals, and percentages. Additionally, there are length, area, region, and set models.

Function Matching

9-12
See how well you understand function expressions by trying to match your function graph to a generated graph. Choose from several function types or select random and let the computer choose.

Geometric Solids

Pre-K-2, 3-5, 6-8, 9-12
This tool allows you to manipulate various geometric solids and investigate their properties.

Grouping and Grazing

Pre-K-2
Help the alien spaceship move cows into corrals by counting, adding, and subtracting. This activity helps children learn grouping, tally marks, and place value.

Okta's Rescue

Pre-K-2

Practice counting and subitizing by playing this game (also available on iOS and Android).

Pan Balance – Expressions

3-5, 6-8, 9-12
Using this interactive tool, you can practice arithmetic and algebraic skills, and investigate the important concept of equivalence.

Pan Balance – Numbers

3-5, 6-8
Use this tool to strengthen understanding and computation of numerical expressions and equality using a balance scale.

Pan Balance – Shapes

3-5, 6-8
Use this tool to build up to algebraic thinking by exploring how to balance shapes of unknown weight.

Random Drawing Tool - Individual Trials

9-12
Explore the relationship between theoretical and experimental probabilities.

Tessellation Creator

3-5, 6-8
Use this applet to create patterns to cover the screen using regular polygons.