"Models all four arithmetic operations! Made especially for MOVE IT Math™ by ETA hand2mind. Sturdy one-piece double-sided crossbeam with numbers on one side and tracks on the reverse side to hold ""topic"" strips. Calibration clips that ensure accuracy. Two sets of pre-printed topic strips—one on time, the other on measurement—that fit in the tracks for teaching equivalences such as 30 minutes = ½ hour and 12 inches = 1 foot. One set of blank topic strips for teaching other topics, such as money, fractions, and fraction-decimal-percent equivalences. Twenty 10-gram weights. Two built-in storage compartments to hold the weights. Measures 31 inches long, 4 inches wide, and 10 ½ inches high."
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