加强对例题的探究 ,挖掘其条件和结论的内涵 ,揭示它们之间的有机联系 ,并通过一题多解、一题多变的练习 ,巩固和发挥例题的典型性和示范性 ,是提高学生解题技能 ,培养学生思维能力的一种好方法 .那么 ,在例题精讲后 ,如何引导学生精练呢 ?本文举例说明如下 :一、由表及里 ,揭 Strengthen the exploration of examples, tap the connotations of their conditions and conclusions, reveal the organic links between them, and through the multiple-question, multi-question exercises to consolidate and demonstrate the typical and exemplary examples, improve students Problem-solving skills, a good way to cultivate students’ thinking ability. So, after the example questions, how to guide students to concise it? This article illustrates as follows: First, from the table and the inside, exposing