Okta challenges you to a duel! That crazy octopus wants to play you in a game where the first person to choose cards with a specified sum wins. You can choose how many cards, what types of numbers, ...

The Product Game is a fun, interactive game that exercises your skill with factors and multiples. This Product Game Investigation was adapted with permission and guidance from Prime Time: Factors and ...

Build up to algebraic thinking by exploring this balance tool using shapes of unknown weight. Challenge yourself to find the weight of each shape in one of six built-in sets or a random set. Two other ...

Geometric Solids. Grade: PreK to 2nd, 3rd to 5th, 6th to 8th, High School This tool allows you to learn about various geometric solids and their properties. You can manipulate and color each shape to ...

Identify patterns in a geometrical figure (based on triangles) and build a foundation for the understanding of fractals.

Tessellation Creator . Grade: 3rd to 5th, 6th to 8th A tessellation is a repeating pattern of polygons that covers a plane with no gaps or overlaps. What kind of tessellations can you make out of ...

Modes. Choose Length, Area, Region, or Set on the bottom right to show different representations of the fractions. Set also lets you choose from four different objects. How to Use. Adjust the value of ...

Features . Click the and buttons to change the number of sectors. Adjust the sliders to change the size of the sectors. Change the name of each sector by clicking on the text, under the column, "Color ...

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Identify which geometric solids can be made from given nets.

General Tools . Select allows you to select cows and drag them. Once a cow is selected, it will turn purple. Group corrals selected cows into groups of 5 or 10, depending on the activity.; Break Group ...