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教学目标:1.理解掌握质数的概念,认识一些有趣的质数;2.引导学生通过观察比较、猜想验证、理解感悟质数的含义;3.培养学生分析问题的能力和应用数学的意识;体验从特殊到一般的认识发展过程,进一步完善学生对自然数的分类方法的掌握,培养学生思维的灵活性。教学重点:理解质数含义,认识有趣质数,了解质数的一些用处。教学难点:认识有趣质数。教学准备:ppt课件。教学过程:一、引入1.今天我们一起来认识有趣的数:质数。那什么是质
Teaching objectives: 1. To understand the concept of mastery of prime numbers, to understand some interesting prime numbers; 2. To guide students to observe and compare conjectures, to understand the meaning of sensory qualities; 3. To develop students’ ability to analyze problems and apply mathematical knowledge; Special to the general understanding of the development process, to further improve the students grasp of the natural number of methods to cultivate the flexibility of student thinking. Teaching focus: to understand the meaning of prime numbers, to understand the interesting prime numbers, to understand some of the usefulness of prime numbers. Teaching difficulties: to understand the interesting prime number. Teaching preparation: ppt courseware. Teaching process: First, the introduction of 1. Today we come together to understand the interesting number: prime number. What is quality?