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在学习了苏教版《数学》一年级下册“加法与减法”一单元后,有一节复习课,教材中出现了一些解决问题的新题型,虽然这些题型表述方式新颖,但对学生理解来说有一定的困难,在之后的教学中即使经常复习这些题型,还是有部分学生依然不能理解。本文拟将一年级下册中学生易错的、难理解的题型一一呈现,旨在找到有效措施帮助学生深入理解,并切实提高学习效率。一、病例大扫描
After learning a module of the first grade of mathematics in the Sujiao edition, there is a review class and some new question types appeared in the textbooks to solve the problems. Although these questions are presented in a novel way, However, there are some difficulties for students’ understanding. Even after reviewing the questions frequently in the teaching afterwards, some students still can not understand it. This paper intends to grade one grade two middle school students easily wrong, difficult to understand the questions presented one by one, designed to find effective measures to help students understand, and effectively improve learning efficiency. First, the case of large scanning