2002 年 23 巻 1 号 p. 51-62
In the present paper, the author considered a very important problem on understanding of Vygotsky's developmental theory of higher mental functions. It is the problem on the relationship between instruction and intellectual development. Analyzing concretely the relationship between the formation of scientific concepts and the development of conscious awareness and voluntary control in school-age children, Vygotsky clarified that the instruction of systematic scientific knowledge in a school is indispensable for their development of higher mental functions. According to Vygotsky, conscious awareness and voluntary control on mental functions come along with scientific concepts.