有些同学虽做了大量的习题,但解题的能力仍没有显著的提高,究其原因是缺乏对知识的内在联系的研究和对知识的深层次的理解。因此,在化学的学习中要把握每个知识点的内涵,注重知识点的联系和拓展。本文通过以下几个例子加以讨论。初中化学人教版上册第107页碳跟氧气反应介绍如下:当碳 Although some students did a lot of exercises, their ability to solve problems still did not improve significantly. The reason is lack of research on the intrinsic connection of knowledge and deep understanding of knowledge. Therefore, in the study of chemistry, we should grasp the connotation of each point of knowledge, pay attention to the connection and expansion of knowledge points. This article by the following examples to be discussed. Junior High School Chemistry PEP Volume on page 107 carbon reaction with oxygen are described below: When carbon