The virtual colored rods in this app vary in length from 1 to 10 units long. Math topics that can be explored include properties of numbers, fractions, ratios, and basic operations.

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This app is a virtual version of the physical manipulatives designed to be used with Math-U-See curriculum. They are used to illustrate a full range of mathematical concepts, including numbers, operations, fractions, decimals, and more.

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This app teaches math concepts based on Common Core State Standards. Learn numbers, counting, addition, subtraction, sorting, patterns, and more through 7 fun educational activities.

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