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Japan caught up with the Klein movement at time it occurred and translated the movement into Japanese to be shared immediately. However, incidents such as the huge earthquake in 1923 caused stagnations. Fruitful classroom experiments were done over the years, and mathematics subjects up to calculus were integrated into the mathematics Clusters I and II secondary school textbooks in 1943–44. The textbooks included praktische Analysis in relation to mechanical instruments. This paper shows, compared to some impact from the US, the clear influence of the von Sanden’s Praktische Analysis on Japan. It also explains how the mechanics and kinematics approaches, known since the era of van Schooten (De Organica Conicarum Sectionum In Plano Descriptione, Tractatus. Geometris, Opticis; Praesertim vero Gnomonicis & Mechanicis Utilis. Cui subnexa est Appendix, de Cubicarum AEquationum resolutione. Elzevier, Lugdunum Batavorum, 1646), served as missing link for integrating geometry and algebra into the concept of function in teaching in Japan during World War II.

icme-13 monographs

The Road of the German Book Praktische Analysis into Japanese Secondary School Mathematics Textbooks (1943–1944): An Influence of the Felix Klein Movement on the Far East