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认识数是学生学习数学的起始内容,一年级学生受年龄和知识水平的限制,对抽象的数概念往往只能辨别符号而无法真正理解其背后的意义,因此,教学中应该创设具体的现实情境,开展丰富的数学活动,渗透抽象思想,引领学生经历数概念的抽象过程,体会数的意义,完成对数的初步认识。一、用圆点表示物体的个数,经历对数的认识的第一次抽象教材选择了儿童乐园的一些场景,组成一幅生动活泼、惹人喜爱的画面,编者分两个层面来呈现:第一层是让学生了解场景里面有些什么,数出各种物体的
Awareness number is the starting point for students to learn mathematics. The first grade students are limited by age and knowledge level. The concept of abstract number often can only discern symbols and can not really understand the meaning behind it. Therefore, teaching should create concrete reality Situation, carry out a wealth of mathematical activities, infiltrating abstract ideas, leading students to abstract the concept of several concepts, understand the significance of the number, complete the initial understanding of the logarithm. First, the number of objects represented by dots, experiencing the first understanding of the number of abstract textbooks selected children’s playground some scenes to form a lively and engaging picture, the editor is presented in two levels: The first level is to let students know what is inside the scene, count out a variety of objects