一、教材分析本册教材的“解决问题”主要包括分数加减法中的简单问题、最大公因数和最小公倍数的简单问题、长方体和正方体的实际问题以及数学广角中的优化策略解决问题。这部分知识含量并不大,有的是旧知识的扩展,有的是几何问题。教材在编排上立足于应 First, the textbook analysis of this textbook “solve the problem ” mainly includes the simple question of the addition and subtraction method of the score, the simplest problem of the greatest common factor and the least common multiple, the actual problems of the cuboid and cuboid, and the optimization strategy in the wide angle of mathematics to solve the problem . This part of the knowledge content is not large, some are the expansion of old knowledge, and some geometric problems. Teaching materials based on the arrangement should be