本册总复习的主要内容有：约数和倍数、分数的意义和性质、分数的加法和减法、长方体和正方体、简单的统计。一、沟通知识联系，构建知识结构首先要引导学生把所学的知识进行系统整理，在整理的过程中进一步沟通知识间的内在联系，建立起清晰的知识结构。如，“约数和倍数... The main contents of the total review of this book are: divisor and multiple, the meaning and nature of the score, the addition and subtraction of scores, cuboids and cubes, simple statistics. First, the communication of knowledge, the construction of knowledge structure should first guide students to systematically organize the knowledge learned, in the process of consolidation to further communicate the intrinsic linkages between knowledge and establish a clear knowledge structure. For example, "divisor and multiple ...