论文部分内容阅读
教学内容:义教课标实验教科书(人教版)三年级下册第88-89页,练习二十一中的相应题目。教学目标:1.结合具体内容初步认识小数,知道以元为单位、以米为单位的小数的实际含义。会认读写小数部分不超过两位的小数。2.知道十分之几可以用一位小数表示,百分之几可以用两位小数表示。3.通过对小数的初步认识,培养学生自主探究、合作交流的意识和解决简单实际问题的能力。4.体会数学与现实生活的联系,培养学生热爱生活、热爱数学的情感。教学重点:理解以元为单位、以米为单位小数的实际含义。教学难点:引导学生在观察、比较中发现小数与分数的联系。教学关键:联系现实背景,结合具体内容,帮助理
Teaching content: Volunteer experimental textbook (PEP) third grade volumes 88-89, practice twenty-one in the corresponding topic. Teaching Objectives: 1. Combination of specific content of a preliminary understanding of decimals, to know the yuan as a unit, the actual meaning of the decimal meter. Will read the fractional part of not more than two decimal places. 2. Know that a few can use a decimal that a few percent can be expressed in two decimal places. 3. Through the initial understanding of the decimal, students develop their self-exploration, cooperation and exchange of awareness and the ability to solve simple practical problems. 4. Experience the connection between mathematics and real life, develop students love life, love math emotion. Teaching focus: to understand the actual meaning of decimals in dollars. Difficulties in teaching: to guide students in the observation, comparison found the relationship between fraction and score. Teaching key: contact with the real background, with specific content, help management