The Secret of Childhood 1913 Lectures The knobless cylinders correspond in

The knobless cylinders correspond in size to the cylinders in the cylinder blocks

Research summaries

These prisms develop visual and muscular perception of dimension

The child learns to discern small differences in weight leading to an awareness of the weights of different objects

Maria Montessori's "California lectures" are made available for the first time in book form

The Secret of Childhood 1913 Lectures The knobless cylinders correspond inMaria Montessori describes the child with warmth and the exactness of the scientist. She discusses the materials and techniques needed to release the child's learning potential. (216 pages)