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引进小学数学概念,常用的方法有以下几种: 一、引导学生感知小学低年级学生学习新概念,一般都是从感知具体事物、获得感性认识开始的。所以在概念教学中,要根据教学内容,运用适当的实物或教具,进行实验或演示,引导学生观察或操作。让学生感知有关的对象,作为形成概念的基础。例1 “直线”的教学。①教师在黑板上用粉线弹线,用直尺画线。指出:这样的线就是直线; ②教师演示:将放松的线绳拉紧,使之由曲变直,突出直线“直”的特征。演示时,为了暗示直线的
The introduction of primary school mathematics concepts, commonly used methods are the following: First, to guide students to perceive the lower primary school students learn new concepts, generally from the perception of specific things, access to perceptual knowledge began. Therefore, in the concept of teaching, according to the teaching content, the use of appropriate physical or teaching aids, experiments or demonstrations, and guide students to observe or operate. Allow students to perceive the relevant objects as a basis for forming concepts. Example 1 “straight line” teaching. ① teachers in the blackboard with powder line shells, drawing with a straight line. Pointed out: This line is a straight line; ② Teacher Demonstration: the relaxation of the rope tension, so that straight from the song, highlighting the straight “straight” features. When demonstrating, to imply a straight line