试论小学数学抽象教学的时机把握

Mastering the Instructional Opportunity of the Primary School Mathematic Abstract

抽象是数学教学中经常性、普遍性的思维活动,也是数学活动中最基本、最重要的思维方法之一。小学数学概念的获得、法则的总结、规律的探索、解决问题策略的提炼等都离不开抽象,而教学的时机把握则在某种程度上决定抽象教学的实效。抽象教学的时机把握需要教师把教学立场真正转向学生的学习,真正理解数学内容的抽象特点,合理灵活地驾驭教材内容,以及具备教学实践理解力和灵活性。

Abstract is the frequent and universal mental activity in the mathematical instruction, and is one of the most basic and important ways of thinking as well. Acquiring mathematics concepts, summing up rules, exploring laws, refining the tactics of resolving problem, all those activities in the primary school need abstract. However, the effect of instructing mathematic abstract relies on mastering the opportunity of instruction. In order to master the opportunity, teacher should put themselves in students＇ positions, accurately understand the characters of mathematic abstract and teach with flexibility.