• BuildingBridges IMAGE ForMainCarousel

    Featured Lesson Plan

    In this grades 6–8 lesson, students transition from arithmetic to algebraic thinking by exploring problems that are not limited to single-solution responses.

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  • FractalTool

    Featured Interactive

    In the spirit of winter, have your students discover Koch's Snowflake!

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  • CubeNets

    Featured Mobile Game

    Cube Nets (grades 3–8) has now been updated and is optimized for your tablet. What's the quickest time in which you can identify all the cubes?

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  • HeartPlot IMAGE ForMainCarousel

    Featured Brain Teaser

    February will be here before we know it! Find the coordinates of eight points that will draw a heart in time for Valentine's Day!

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