ZCTF - Zimbabwe Conservation Task Force 。 13606 個讚· 2 人正在談論這個。非營利組織. ... <看更多>

Piagetian Conservation Tasks Math Classroom, Classroom Activities, Conservation, Presentation, Children, Kids. Preoperational Stage - Egocentrism. ... <看更多>

The task is as follows: Coins such as pennies are placed on a table. A certain number of coins are placed in a row, and a matching series of ... ... <看更多>