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The Checker Board is used for short and long multiplication with the hierarchies in the decimal system up to 100
1 Tens Die 00-90
Triangular box dimensions: 25
diameters range from 2
Knobbed Cylinders - Block #1 language-objects The Checker Board is usedBlock #1 only. Cylinder diameter increases as height increases. Block has ten cylinders. The purpose of this product is to help develop the child's visual discrimination of size. Indirectly, it also prepares the child for writing through the handling of the cylinders by their knobs. Also indirectly prepares the child for later work in Mathematics through observation of the regular differences in the cylinders. Features Materials: Solid beech wood.
