By Margaret Lowenfeld

Poleidoblocs are a set of objects designed to call out certain reactions and responses in children. They are cut in shapes like those a child sees all around him and with built-in mathematical relations. The purpose of Poleidoblocs in the Infant School is to put children into something like the situation of primitive mathematicians in that through handling and observing them, through using imagination and constructive ability in working with them, children have the opportunity to discover for themselves mathematical properties both simple and more profound.