MAT000000

This classroom manipulative is perfect for demonstrating patterns, numbers, sorting and counting opportunities. The classroom set contains 100 interlocking cubes.

Charming vehicle counters come in four bright colors for counting, sorting, and grouping.

Charming vehicle counters come in four bright colors for counting, sorting, and grouping.

A rethinking of Cantor and infinitary mathematics by the creator of Vopěnka’s principle.   The dominant current of twentieth-century mathematics relies on Georg Cantor’s classical theory of infinite sets, which…