The Programmable Hand-held Calculator on Mathematical Education

将来のコンピューター教育をふまえて,プログラム電卓の使用法を学習することが,数学教育においてどのような方法で行なわれ,どのような位置づけがなされるかを,従来の教材と比較して考察を試みた。Recently, the education of the calculator or the computer attracts our attention. In this paper, we shall discuss how and why to teach the use of the programmable calcultor in school mathematics with the view of the computer education for the future. The way to teach this material should be as follows: To make the students: (1) push the unknown key under instructions from the teacher. (2) consider the function of the key, and hypothesize. (3) verify if the hypothesis is true or not by experiment. This method, often used in school science, suits well for this material of instruction, because this experiment has no error, and because it is easy for the teacher to have the students view the matter from the angle which the teacher thinks desirable. For this reason, this material contributes to the scientific education. On the other hand, "programming" can be looked on as a sort of "proof". The instruction of "programming" is better material to develop the ability to think logically than that of Euclidian geometry