Abstract
The purpose of this study is to clarify some aspects in school children's development of expressive ability through the creative activities of music, and to find a systematical method of instruction and evaluation. I will consider children's musical activities and works from these 3 points of view. 1) How do children come to use sound material as a tool of expression? 2) How can they express what they imagin? 3) What sounds generated from sound material can evoke children's imagination towards expression? Before the children can use sound material as a tool of expression, they need realize what sound material is. After this, they begin to communicate their expressions to others, and then they improve their ways of expressing in their own manners. In these cases, the children in the lower grades tend to use mainly tone color and accent among the constituents of music, whereas the students in the higher grades can use a variety of elements, such as accent, tempo, form, melody, and so on. Their ability to express widens and deepens with age.
