Toys, Games and Hobby Products Design Elephant Geometry Mathematical Early Education Toys by Sha Yang Elephant Geometry is a mathematics education toy for children over four years old. The design draws on the traditional Chinese story of Cao Chong weighing an elephant, in which equivalent replacement is used to find a weight. Small magnetic triangular and square blocks are joined on a magnetic board to form patterns such as animals and fruits. The area of each pattern is then found by counting the blocks. Cards inserted through a side groove guide play from simple to difficult tasks. The blocks and the board are made of ABS with magnetic discs.