Abstract
Perry's movement happened in the early 20th century, and the importance of
practical mathematics in school education rose. Kinnosuke Ogura, Kiyoshi Yokochi, and
others put emphasis on the "development of the scientific mind" in the school mathematics
education of Japan and worked on the education reform. In this paper, I will introduce the
results of our thirty-year studies done to adopt this practical mathematics for school
education. That is, the teaching materials of CRM Approach that Tetsuo Matsumiya
proposed, the teaching materials that we developed for problem and situation-based
learning and for teaching mathematical modelling, the SGH teaching materials, and the
mathematical modelling challenge program. The introduction of this practical mathematics
is an important perspective in bringing up children who can live strongly in the 21st century
in Japan.