A set of two plastic tracks numbered from 1 to 100 and 50 rods that slide along the center of the track. Used to develop skills in counting sorting sequencing pattern recognition measuring addition and subtraction. Visual and hands-on math learning.... more
Simulate the epic earth-shattering power of a volcano in your own home! Build a huge volcano model with a sturdy frame that effortlessly slides together. Wrap the frame in hardening plaster-coated fabric strips and then paint it to look like the real... more
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