一、教材分析根据《数学课程标准》的要求,一年级上册教材的教学内容包括:20以内数的认识,比较与分类,10以内的加减法,20以内的进位加法,认识物体和图形,认识钟表,数学实践活动。其中20以内数的认识,10以内的加减法,20以内的进位加法是本册的教学重点。本册教材具有以下特点:1. First, the textbook analysis According to the “mathematics curriculum standards,” the requirements of the first grade teaching materials on the book include: 20 within the number of recognition, comparison and classification, addition and subtraction within 10, plus carry within 20 to recognize objects and graphics, Know the clock, math practice activities. Within 20 of which the number of understanding, addition and subtraction within 10, plus carry within 20 is the teaching focus of this book. The textbook has the following characteristics: 1.