几何图形磁铁拼板是在一个正方形的磁底盘里，运用不同的拼片，能够拼出基本图形，不规则图形、组合图形计200余个，能运用割补、对折、平移、翻转等方法，灵活的进行图形变换，并能算出所拼图形的面积和周长，推导三角形、平行四边形、梯形等图形的面积计算公式；能帮助学生建立分数概念，了解分数的意义及性质，还能演示等积、等底三角形和平行四边形高的比等一类抽象的数量关系。
J315 Magnetic Geometric Puzzle
It is a magnet in a square of the magnetic chassis, using different film together, be able to spell basic graphics, graphic anomalies, the combination of graphics than 200 dollars, can use up cutting, folding, pan, flip, and other methods And flexible graphics for change and the fight out of the graphics area and perimeter, derived triangle, parallelogram, trapezoid, and other graphics of the formula for calculating the area; help students to develop the concept of points, to understand the meaning and nature of the score, but also demonstrate And so on the plot, such as at the end of the triangle and parallelogram high ratio of the number of a class of abstract relations.