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甲、教材的分析:试用本高小第三册算术的总复习,包括约数和倍数,分数的意义和性质,分数四则式题和应用题。它概括了全册的主要内容,有严密的系统性,政治思想教育的因素也很丰富。约数和倍数是学习分数的基础,所以首先复习这方面的知识。第332题是对质数和合数的认识,第333题要求把合数化成质数相乘的形式,这两题是为复习求最大公约数和求最小公倍数做准备的第334、335题就是在这个基础上复习求两个数的最大公约数与最小公倍数。
Analysis of A/Teaching Materials: The total review of the mathematics of the third book of this book, including the numbers and multiples, the meaning and nature of the scores, and the four-point questions and applied questions. It sums up the main contents of the entire book, has a strict systemic, political and ideological education factors are also very rich. Divisors and multiples are the basis for learning scores, so first review this knowledge. Question 332 is about the understanding of prime numbers and composite numbers, and question 333 asks to convert the composite numbers into multiplicative forms of prime numbers. These two questions are the first 334 and 335 questions for the review of the greatest common divisor and the least common multiple. On the basis of reviewing the greatest common divisor and least common multiple of two numbers.