课本上的习题,看似很平常,实则具有极大的拓展空间.我们不能满足于顺利解决习题,而应由此及彼,层层延伸,步步拓展,从而挖掘知识之间的联系,提高解题能力和学习能力.下面我们就从课本一道习题谈起,一起来探究正方体的展开图给我们带来的联想与拓展.课本习题七年级上册苏科版教材129页数学实验室:将一个正方体纸盒沿部分棱剪开展成一个平面图形.把你得到的平面图形与同学交流.【分析】立体图形的展开是培养空间 Exercises on the textbooks, which seem to be very common, actually have great room for development. We can not be content with the solution to the problem smoothly. Instead, we should extend it step by step and step by step so as to tap the connection between knowledge and increase Problem solving ability and ability to learn. Here we talk about the textbook from an exercise, together to explore the expansion of the cube to bring us the association and expansion. Textbook exercises Grade seven Su Keban textbook 129 Mathematics Laboratory: a The cube carton along the part of the edge pruning into a plane graphic.You get the graphic and classmates exchange. 【Analysis】 three-dimensional graphics is the cultivation of space