| 摘要 |
PROBLEM TO BE SOLVED: To provide a teaching material for learning geometry formed of a combination of planar members, which allows anyone to intuitively understand operation method thereof.SOLUTION: A teaching material for learning geometry enables learning of geometry by combining plate-like polygonal members to form a structure, or by filling a plane. The teaching material for learning geometry is novel in points that it uses magnets as coupling means when coupling respective members, and that it comprises a convex curve portion and a concave curve portion at an outer peripheral edge portion and makes them engage so as to intersect with each other, thereby improving coupling strength. |
