有几瓶牛奶

• 作 者: 王栩 戴正之
• 机 构: 长春市南关区东二小学,长春市南关区教师进修学校,
• 出 处: 吉林教育
• 发表日期: 2012年31期
• 关键词: 进位加法 生活情境 数学问题 学习规律 自主探究学习 计算能力 数学信息 多媒体幻灯片 板书课题 教材分析

一、教学内容《新世纪版小学数学》一年级上册第72页。二、教材分析《有几瓶牛奶》(9+几)是20以内进位加法的第一节课,是学生学习进位加法的启始课。教材共分三个层次进行:一,通过对生活情境的观察、思考,提出数学问题,列出加法算式;二,通过学生实践,探索如何计算“9+5”;三,通过“试一试”(计算两道加法题),巩固学习成果。教材注重

First, the teaching content “New Century Edition primary school mathematics,” the first grade on the first 72 pages. Second, textbook analysis “There are a few bottles of milk” (9 + a few) is the first plus plus within 20 lessons, students learn the addi- tive addition start class. Teaching materials are divided into three levels: First, through the observation of the life situation, thinking, put forward mathematical problems, lists the addition formula; Second, through student practice, to explore how to calculate “9 +5”; Third, Try it "(Calculate two additions) to consolidate learning outcomes. Teaching material attention