极限入门讲授新方法

Introducing A New Teaching Way of Limit

极限概念是“高等数学”的大门 ,能否准确地理解这一概念 ,直接影响“高等数学”的学习效果。由于定义抽象 ,掌握这一概念难度较大。笔者在教学实践中摸索出的新的讲授方法———借助易懂的“过渡”定义进入极限概念 ,获得了较好的教学效果。

The concept of limit is the gate of entering “Higher Mathematics”.It relates to the study of “Higher Mathematics” directly. Since the fact that the definition is abstracted,we have some difficulty to master it. Now we introduce a nwe way_comprehensible “Interim” definition, which causes the students to study the abstracted definition easier. We practise it and the effects proved well.