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The National Council of Teachers of Mathematics encourages student experience with visualizing, drawing and comparing shapes in various positions. Thanks to these challenging activities and stackable, attachable cubes, your students will easily make the leap from 2-D equations to 3-D understanding of geometry and other aspects of physical math. The 3-D Problem Solving Kit offers hands-on practice with estimation, measurement, area and volume, structures, sequences, symmetry and spatial geometry. Includes 300 Omnifix Cubes, a 96-page book with 48 reproducible activities, teacher lesson plans, blank drawing grids, an answer key and a sturdy plastic case for years of repeated use.