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画线段图策略是众多的解题策略中最基本的、也是很重要的一个策略。通过画图,把纯文字的问题变得直观明了,在纷繁的数量之间,去除非本质属性,抓住数量之间的本质联系,从而使学生能从图中理解题意,搜寻到解决问题的突破口,形成解题的思路,成为学生解答较复杂问题的“制胜法宝”。一、巧用线段图,帮助学生读懂题意小学生的数学学习,正处在以形象思维为主,向抽象思维过渡的阶段。许多数学问题多以文字形式呈现,纯文字的问题语言表述上虽比较言简,但枯燥乏味,致使他们常常读不懂题意。更有学生不愿读题,懒的读题。如果教师能让学生自己在纸上涂一涂、画一画,借助线段图把抽
Drawing line segment strategy strategy is the most basic of many problem-solving strategies, but also a very important strategy. Through the drawing, the problem of plain text becomes straightforward and intuitive. By eliminating the non-essential attributes and grasping the essential relationship between the numbers, we can make students understand the questions, search and solve the problems Breakthrough, the formation of a solution to the problem of thinking, to become a student to answer more complex issues, “winning magic.” First, the clever use of line segments to help students understand the primary school math problem solving, is in the image of the main thinking, the transition to abstract thinking stage. Many mathematical problems are mostly presented in the form of texts. The language of plain-text questions is relatively brief but dull, which often causes them to fail to understand the topic. More students do not want to read the title, lazy reading questions. If the teacher can make the students apply a slip of paper on their own, draw a picture, draw on the line drawing