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Department of Mathematics, Faculty of Education, Kagawa University | 論文
- A Locus of the Orthocenter of a Pedal Triangle : Instruction of Geometry by Use of a Drawing Game on a Display
- A Triangle with Distinguished Concyclic Points : Instruction of Geometry by Use of a Drawing Game on a Display
- A Locus of the Orthocenter of a Triangle : Instruction in Geometry by a Moving Locus on a Computer