TY - BOOK ID - 137155338 TI - Piaget, children, and number : applying Piaget's theory to the teaching of elementary number AU - DeVries, Rheta AU - Kamii, Constance PY - 1978 SN - 0912674490 PB - Washington National association for the education of young children DB - UniCat KW - Arithmetic KW - Number concept in children KW - Study and teaching (Primary) KW - Piaget, Jean, UR - https://www.unicat.be/uniCat?func=search&query=sysid:137155338 AB - ER -