著名数学家华罗庚说过:学数学不做习题,如入宝山而空回。为了提高解题技巧,通过寻规律、找窍门,苦学的同时加巧学,在提高学员的逻辑思维能力和自主学习能力的同时,对教学质量的改善也能收到事半功倍的效果。本文拟就这方面谈几点粗浅的认识和体会。1 极限运算 极限概念是本课程的基本概念之一,在课程学习中,利用公式 或 讲行极限计算,应注意变量的形式及自变量的变化趋势须与公式保持一致,否则易出错。如 　.虽然变量的形式与公式中的形式一致,但自变量的变化趋势不一样,因此结果也不一样了,事实上 　。寻找规律,我们可长结为无穷小）无穷大=e,不管x如何变化,必须满足:1①处是“1”, Hua Luogeng famous mathematician said: learning math does not do exercises, such as Baoshan back empty. In order to improve the problem-solving skills, by finding laws, finding tricks, hard learning while adding clever learning, while improving students’ ability of logical thinking and autonomous learning, they can also receive more effective results with improvement of teaching quality. This article intends to talk about a few superficial understanding and experience in this regard. 1 The concept of extreme operation limit is one of the basic concepts of this course. During the course of study, formula or limit calculation should be noted that the form of variables and the trend of independent variables must be consistent with the formula, otherwise error-prone. For example, although the form of a variable is consistent with that in a formula, the trend of independent variables is not the same, so the result is different, in fact. Finding the law, we can grow into infinite infinity) Infinity = e, no matter how x changes, must meet: 1① Department is “1”,