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一、教材分析 《1-5的认识和加减法》是人教版实验教材一年级上册第三单元的内容。本单元是小学生学习数学的开始,它包括5以内各数的认识,5以内数的加法和减法,0的认识和加减法。 5以内各数,许多儿童在入学前都已会数甚至会读、会写,教学重点是让学生建立数概念,因此这部分内容包括数的基数、序数含义,数的认、读、写,数的顺序,数的大小比较和数的组成等。教学时,要让学生初步经历从日常生活中抽象出数的过程,通过游戏、活动等各种形式,帮助学生建立数感。会用数字、符号或图形等表示数和进行交流。
First, the textbook analysis “1-5 understanding and addition and subtraction” is the PEP teaching material first grade on the third unit content. This module is the beginning of pupils' learning math. It includes the recognition of numbers within 5, the addition and subtraction within five, the recognition and addition and subtraction of zero. 5, within the number of many children in the pre-admission have been counted or even read, write, the focus of the teaching is to enable students to establish the number concept, so this part includes the number of base, ordinal meaning, the number of recognition, The order of the number, the size of the number of comparison and the composition of the number. When teaching, let the students experience the process of abstraction from everyday life. Through games, activities and other forms, to help students to establish a sense of number. Use numbers, symbols or graphics to represent numbers and communicate.