Each of their Mountains and the 2D Playground are designed for use in all grades Pre-K through 6+. Use any of them or a combination of them to help children learn to make connections and move fluidly from concept to concept, from whole numbers to fractions, and from the concrete to the abstract.

This Mountain measures 18" in diameter and 8" high and is easily portable. The maximum height reached (peak elevation) is 36. It is excellent for introducing and exploring even the most advanced concepts but it is more limited in developing fluency. The number of players varies by activity, from one to four. Hands-on activities and length of play are suited to beginning levels and skills as well as more advanced ones. Ages 4 to 94.

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