GAM Cylinder Block No. 2

The Cylinder Blocks introduce the child to the first stage of visual discrimination of size. Cylinders progress in diameter from thin to thick. Made of solid beechwood with a satin smooth lacquer finish. Each cylinder is individually sanded and lacquered.

Each cylinder decreases by 1/2 cm in all dimensions. Cylinders progress in height and diameter from short to tall and to thick to thin.

Block 1 and Block 2 are the easiest blocks because they vary in all three dimensions. Block 3 varies in two dimensions, and block 4 in one dimensions. The control of erro is more obvius in blocks 1,2 and 3 than in block 4, all the cylinders can be replaced even if they are not in their corresponding cavities.

Control of error: Cylinders cannot all be replaced unless each is in its correct cavity.