[3D] (01-1) Education at universities and KOSEN (College of Technology) - Education method and its teaching materials development by lecture and exercises -IX

[3D21] Active introduction via iPad for showing shortest distance connecting points of isosceles trapezoid

Practice in Geometry by GeoGebra active instructions

○Yukinori OOMURA¹, Yusuke WASHIO¹, Yukiko WASHIO¹, Hirotoshi FURUTSU¹, Noriko HIRATA¹ (1. Nihon University, College of Science and Technology)

Keywords:Mathematics education, GeoGebra active instructions, Geometry on iPad

平面上に３個以上の点が存在するとき，それらを結ぶ経路（線分と分岐点の集合）のうちで最短のものを，最短経路とよぶことにする．今回我々がGeoGebraで作成した教材では，4点が等脚台形の頂点に位置する場合の最短経路を，動的に示している。