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教学内容苏教版小学《数学》第十册第50-51页。教学目标1.理解质数和合数的概念,能正确地判断一个数是质数还是合数。2.培养自主探究的精神和独立思考的能力,渗透分类思想、查表法等有关数学思想。教学过程一、复习旧知,引入新课前面我们研究了约数,什么叫约数?怎样找一个数所
Teaching content Sujiao Primary School “Mathematics” tenth volumes 50-51 pages. Teaching Objectives 1. To understand the concept of prime numbers and composite numbers, can correctly determine whether a number is a prime or a composite number. 2. To cultivate the spirit of independent inquiry and the ability of independent thinking, infiltration of the classification of thinking, the law and other related matlab mathematical thinking. Teaching process First, review the old knowledge, the introduction of a new class In front of us to study the approximate number, what is the approximate number? How to find a number