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Perrys 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.