论文部分内容阅读
课程标准实验教科书人教版数学二年级下册第1单元“解决问题”是一个既熟悉又陌生的精致小单元。说熟悉,是因为它具有传统应用题的一些特点;说陌生,是因为它的呈现方式与传统应用题有着明显区别;说精致,是因为在新教材中“解决问题”是结合计算教学分散在例题与习题中,以小单元编排,它包括加、减两步计算,乘加、乘减两步计算,带小括号两步计算等3种例题。“解决问题”如何教学,本文试图通过例1的教学谈点看法。
Curriculum Standard Experiment Textbook PEP 2 Next Part 1 “Problem-solving” is a delicate and small unit that is both familiar and unfamiliar. Said familiar, because it has some of the characteristics of the traditional application questions; strange, because of its presentation and the traditional application of a clear distinction; said refined, because in the new textbook “problem solving ” is a combination of computing teaching Scattered in the examples and exercises, the small unit orchestration, which includes plus and minus two-step calculation, multiplication and addition, multiplication and reduction by two steps, two steps with parentheses calculation three kinds of examples. “Solve the problem ” how to teach, this article attempts to talk about the teaching of Example 1 point of view.