Production Information
Quick Facts
| Release Date | February 1, 1968 |
| Status | Released |
| Language | EN |
No cast information available
We couldn't find cast data for this movie
Children between the ages of five and twelve perform tasks dealing with quantity, length, area, and volume to illustrate the Piagetian concept of conservation. The children's differing approaches to the tasks are discussed by Dr. Robert Karplus and Celia Stendler Lavatelli.
Status: Released
Language: EN
| Release Date | February 1, 1968 |
| Status | Released |
| Language | EN |
We couldn't find cast data for this movie