基于两道极限题引发的思考

摘要

The limit is the soul of the calculus, correctly grasp the limit thought is the key to learn calculus. Ultimate questions are changes, also a lot of problems solving methods. According to the two limit of“ ”type indeterminate form, uses ways to guide students to observe and solve problems from many aspects, and guide the students to compare various methods, to find the optimal, and find out the immanent connection, so as to cultivate their thinking ability.%　　极限是整个微积分的灵魂，正确把握极限的思想是学好微积分的关键。极限的题型千变万化，解题的方法也很多。本文针对两道“”型未定式求极限的题目，采用“一题多解”的方法引导学生从多方面观察和解决问题，同时引导学生比较多种解题方法，找出最优，并挖掘其内在联系，从而培养他们的发散思维的能力。