Visual Sense, Page 8

With the Trinomial Cube children can focus on patterning and ordering, and making connections as to the relationships between the different cubes and prisms regarding dimension,...

The 12 Identical Blue Triangles are used to explore equivalency, congruency and similarity. Includes 12 right-angled scalene triangles and a beechwood box with lid.

The Knobless Cylinders are the final stage in the dimensional material where the child, based upon his ability to discriminate, places the individual sets of cylinders in the...