Ideal for exploring, measuring, and comparing volume relationships, volume formulas, and surface areas of 3-dimensional figures, all of the View-Thru™ models are relational in size to each other. Each includes removable lids with center hole stoppers for use with any wet or dry fill. Their 10 cm inner dimensions make these precise models for accurately demonstrating volume concepts. Set includes a sphere, hemisphere, square prism, cylinder, cone, rectangular prism and a teacher activity guide. Set of seven.
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