• PaperPool IMAGE

    Featured Lesson Plan

    Develop your understanding of ratio, proportion, GCF, and LCM with this grades 6–8 five lesson unit.

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  • PiFight Screenshot

    Featured Mobile Game

    Check out our latest game, Pi Fight! How comfortable are you with radians and degrees? 

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  • GraphCreator IMAGE

    Featured Interactive

    Use this tool grades 6–12 tool to explore Euler paths, Hamilton paths, and more! 

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  • FourStraightLines IMAGE

    Featured Brain Teaser

    Make a square with 9 dots as shown. Cross all the dots with 4 straight lines without taking your pencil off the paper.

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