Initial Piagetian Tasks Theme: Substance Conservation Source: (J. Piaget); date: 4/22/1977 LinkEmbedCopy and paste this HTML code into your webpage to embed. Does changing shape change weight? 23mb LinkEmbedCopy and paste this HTML code into your webpage to embed. Does changing shape change volume? 20mb LinkEmbedCopy and paste this HTML code into your webpage to embed. Playing on his own 9mb
