1.3 The Roles of the Curriculum and Textbooks
The Problem Solving Approach is preferred for teaching content and process in order to . learn how to learn. This mearis that the approach has been used to develop mathematical thinking. Parts I and II of this book were originally written by Katagiri in Japanese and edited and translated into English by Isoda. In Part I, Katagiri's proposed approach does not explain the approach, because the approach itself has already been shared in Japan. Illuminating examples in Part II will support one's understanding of this approach. In order to show how to develop mathematical thinking in Part II, we have chosen only the case of the number table as an example for the problem situations from a number of his examples. This is because it is easier to explain the preparation that