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高一新生入学后,很快就要学到映射,映射是现代数学的最基本的概念之一,把这一概念放在中学阶段无疑是强化现代数学意识的表现.但是,映射概念十分抽象,给中学生在学习上带来许多困难,怎样对这一概念进行教学呢?陈重穆教授曾提出“淡化形式,注重实质”,这一思想观点给我很大启发,本文就映射概念教学,谈谈自己的一点做法,供大家参考.
After entering the school, the first-year students will soon have to learn mapping. Mapping is one of the most basic concepts of modern mathematics. Putting this concept on the middle school stage is undoubtedly an expression of modern mathematical consciousness. However, the mapping concept is very abstract. There are many difficulties for middle school students in learning. How to teach this concept? Prof. Chen Zhongmu once put forward the idea of “dilution of forms, focusing on the essence”. This idea gave me a lot of inspiration. This article maps concept teaching and talks about myself. A little practice for your reference.