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Aim: This product helps develop the child’s muscular coordination and visual discrimination of differences in one dimension. It also indirectly prepares the child for later work in geometry though the general observation of differences in the rod lengths, faces, and total volumes. The child is also introduced to the concept of numbers and demonstrating the unit difference in length between the ten rods. Material: Ten red, wooden rods of equal thickness; they vary in length from ten centimeters to one meter, by ten centimeter increments.
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Ok 
