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我们根据小学数学几何初步知识教学要求和小学、初中阶段都是实验几何的特点,设计了简易学具——几何图形拼板,每个学生人手一套。运用几何图形拼板,不仅增强了教学的直观性和实验性,提高学生观察能力和抽象思维能力,也为小学和初中平面几何的衔接打下了牢固基础。几何图形拼板的设计如下: 在边长为20厘米的正方形硬纸板上,按下图中尺寸剪裁好,即可。
According to elementary mathematics geometry elementary teaching requirement of elementary school and elementary school and junior high school, all of them are the characteristics of experimental geometry. We designed a simple learning tool - geometrical figure puzzle and a set of each student's manpower. The use of geometry puzzle not only enhances the visual and experimental teaching, improves students' abilities of observing and abstract thinking, but also lays a firm foundation for the connection between the plane geometry of primary school and junior high school. Geometric puzzle design is as follows: 20 cm square edge of the cardboard, according to the size of the figure cut, you can.