KSSY009 - Knobless Cylinders Beechwood
4 sets of 10 cylinders varying in height and/or diameter in each set. Each set is in a separate wood box with the lid painted the same color as the cylinders: red, green, yellow and blue.
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 correct order. The purpose of this material is to develop child's visual perception of dimension. It also provide experiences in comparison, grading and seriation - indirect preparation for mathematics.