Sansū-girai sūgaku-girai
By: Ginbayashi Kō.
Series: Kodomo to kyōiku o kangaeru ;; 17; Kodomo to kyōiku o kangaeru ;; 17.
Publisher: Iwanami Shoten
Published: 1984
Place of publication: Tōkyō
Language: jpn
Number of pages: 223
Subjects: Arithmetic -- Study and teaching (Primary) -- Psychological aspects.; Mathematics -- Study and teaching (Secondary) -- Psychological aspects.