论文部分内容阅读
教学内容苏教版小学《数学》第十一册第50页《认识倒数》。目标预设理解倒数的意义,掌握求倒数的方法,并能正确熟练地求出倒数;培养学生的观察能力、数学语言表达能力、发现规律的能力、抽象归纳的能力;提高学生学习数学的兴趣,发展学生质疑的习惯。重点与难点重点:知道倒数的意义和会求一个数的倒数。难点:理解“互为”的意义,明确倒数表示的是两个数之间的关系。理解0没有倒数、1的倒数还是1。设计理念概念课的教学要让学生“明晰概念的形式、把
Teaching content Sujiao Primary School ”Mathematics“ eleventh book page 50 ”know the countdown.“ Objectives to understand the meaning of the countdown to understand the reciprocal count method, and can correctly and skillfully find the countdown; to develop students ’observation skills, mathematical language skills, the ability to discover laws, abstract induction; improve students’ interest in learning mathematics , Develop the habit of students to question. Emphasis and Difficulties Important: Know the significance of the countdown and ask for the reciprocal of a number. Difficulties: Understanding ”reciprocal “ meaning, clearly reciprocal that the relationship between the two numbers. Understand 0 does not countdown, 1 countdown is still 1. Design concept The concept of class teaching to let students ”clear concept of the form, put