These cards provide an extension to activities using the Brown Stair, Pink Tower, Knobbed or Knobless Cylinders. By matching the parts of the apparatus to corresponding base cards, children refine visual discrimination of size. By comparing solids and planes, the child’s perceptions become more abstract.
This extension is similar to the use of the Geometric Cabinet cards or the wooden bases of the Geometric Solids. Set includes 10 durable, wipe-off cards for each of the following: Brown Stair (9¼" x 5½"), Pink Tower (5" square), Cylinders (2¾" square).