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本册教材编排,有两个循环,同时加减交错,重复繁琐,脉络不清,学生不容易掌握规律。建议把10以内数的认识及10以内数的加减法分别归在20以内数的认识及20以内数的不超十加减法里,同时加减法也分别归类,这样可以在掌握了加法的基础上学习减法,系统性强,便于集中讲深讲透概念,突击重点,揭露规律,熟练运算。原教材是式题和应用题混杂编排,这样学生在运算上还未达到熟练程度,甚至对概念还未掌握清楚,马上就要来解应用题,对于一年级学生来说,这个困难更大.因为解应用题不仅要求学生正确理解题意,根据题目的要求列出算式,而且还要求计算的正确、熟练,任务是较复杂的。建议把应用题分别集中在加、减法式题以后讲解(如加法、加法应用题,减法、减法应用题)。这样安排就使学生能在熟
This book textbook layout, there are two cycles, while adding and subtracting staggered, tedious repetition, confused, students are not easy to grasp the law. It is recommended to recognize the number of less than 10 and less than 10, respectively, the number of addition and subtraction within the number of 20 or less within the understanding of the number of not more than 20 plus 10 addition and subtraction, while addition and subtraction are also classified, so you can master Addition based on learning subtraction, systematic, easy to concentrate on the concept of deep penetration, surprise focus, expose the law, skilled computing. The original textbook is a mixed arrangement of style questions and applied questions. In this way, the students have not yet reached the level of proficiency in operations, and even have not mastered the concept clearly. This difficulty will soon be solved by the students in first grade. Because the solution to the problem not only requires students to correctly understand the problem, according to the title of the requirements listed in the formula, but also requires the calculation of the correct, proficient, the task is more complicated. Proposed application of the questions were focused on plus, minus French style after explain (such as addition, addition of application, subtraction, subtraction application). This arrangement allows students to be familiar