2. Because the most important goal of teaching AIDS is to meet the inner needs of children, the size and dimension are only considered from the ability of children. For example, the largest part of the pink tower can be moved by children.
3. Every teaching aid has factors that can attract children, such as the weight and color of pink tower wood; Or the rustling sound when scooping beans with a spoon.
4, the design of teaching AIDS, to provide a person with the operation as the main consideration. 5. The individual and combined use of each teaching aid can only be completed according to its steps and sequence. Moreover, whether in design or in use, it is from simple to complex. Its main purpose is to train children to understand the steps, pay attention to the order, and indirectly cultivate children's "internal discipline."
6. Each teaching aid has a direct and indirect educational purpose.
7. In design, it has the characteristics of error control, which enables children to find their own mistakes and correct them themselves. For example, there are ten pink towers, the smallest is a one-centimeter cube, and the largest is a ten-centimeter cube, so the biggest one is one centimeter away from the next big one. After piling up the tower, the child can pick up the smallest piece and measure the gap between the pieces. He will find that it is exactly one centimeter.
8. Cultivate children's logical habits and reasoning ability through steps and sequences.