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在高三复习中,让学生做一定数量的习题,是巩固学生已学知识的重要手段,但若仅仅满足于此,学生收获就不大,若能引导学生对一些习题进行延伸与拓展、归纳与总结,则能达到事半功倍、举一反三之效,是让学生跳出题海战术的有效方法。下面是笔者在高三复习过氧化钠知识点时,引导学生对一道简单试题进行延伸拓展,归纳总结的习题课,收到了很好的效果。
In the third year of high school review, allowing students to do a certain number of exercises is to consolidate the students have learned an important means of knowledge, but if only to meet this, the students gain is not large, if we can guide students to extend and expand the number of exercises, inductive and To sum up, you can achieve more with less effort, give top priority to the effect, is an effective way for students to jump out of the title of the sea tactics. The following is the author in the third year review sodium knowledge point, to guide students to a simple extension of the test questions, lessons learned, concluded, received very good results.