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化学计算是学生的基本技能之一,它可以使学生从量的方面来理解物质及其变化的规律。而学生易解错计算题是教学中普遍存在的问题,其原因除了学生对化学基本知识缺乏深刻地理解以外,主要是没有掌握解题的策略与技巧,不能适应试题形式的迁移和变化。本文拟以此问题作些初浅的探讨。一、正确领会题意把握解题方向解题的首要问题是审题,领会题意。所谓领会题意,不仅要读懂题目叙述的意思,搞清其内涵及变化过程等,更要领会题目的命题思想和意图,明确所要考查的内容、范围和方法,把握正确的解题方向,避免钻入死胡同。
Chemistry calculation is one of the basic skills of students. It can enable students to understand the laws of matter and its changes from the aspect of quantity. The problem of students’ miscalculation is a common problem in teaching. The reason is that, besides lack of profound understanding of chemistry basic knowledge, students mainly lack the strategies and skills to solve the problems and cannot adapt to the migration and change of the questions. This article intends to make some initial discussions on this issue. First, the correct understanding of the problem is to grasp the problem solving problems in the direction of the first question is to examine the problem, comprehend the meaning of the problem. The so-called comprehension questions mean not only to understand the meaning of the title narrative, to understand its connotation and change process, but also to comprehend the subject’s proposition thoughts and intentions, to specify the content, scope, and method to be examined, and to grasp the correct direction of the problem. Avoid drilling into dead ends.