経済教育における「余剰」概念の修得の必要性 : 教員養成のための「経済学」の構築の一環として

A purpose of this paper is to suggest a necessity of construction of economic education for teachers training courses. The acquisition of the teachers' licenses of social studies in junior high school and civics in high school is possibility to study only one course on economics in current law. To train high quality teachers, this paper emphasizes a teaching method to make understanding on market mechanism. This paper, especially, presents necessity to introduce the concept on "Surplus" to the teachers training courses and the textbook for the secondary school.