将高中化学课程与初中课程相比较,高中化学明显在内容的广度、难度、深度上要强于或高于初中化学。初中化学的一个特点是描述性知识为主,而高中化学的特点则是推理性知识为主,而且从前者向后者发展的趋势非常明显。高中化学知识提高了综合度和复杂度,这就要求学生在思维能力上必须从形象思维向抽象思维转变和发展。因此,高中学生对高中阶段化学知识掌握得如何将对他们人生的发展有着重要的影响。有很大一部分学生由于自身化学基础比较差,加上高中化学有一定的难度和深度,导致学习兴趣缺乏、信心不足、自主性学习能力较弱,学习效率低下。高中学生在化学学习中存在的这些问题,严重影响了他们对化学的学习,有的甚至造成了恶性循环。如何有效消除学生中的这些问题,提高学习效率,笔者结合教学实践,谈几点粗浅的认识。 Comparing high school chemistry classes with junior high school classes, high school chemistry is clearly stronger or higher than middle school chemistry in breadth, difficulty and depth of content. One of the characteristics of junior high school chemistry is descriptive knowledge, while high school chemistry is characterized by inferential knowledge, and the tendency of the former to the latter is obvious. High school chemistry to improve the comprehensiveness and complexity, which requires students in thinking ability must change from the image of thinking to abstract thinking and development. Therefore, how high school students master high school chemistry knowledge will have an important influence on the development of their life. A large part of students because of their relatively poor chemical basis, coupled with a certain degree of difficulty and depth of high school chemistry, resulting in lack of interest in learning, lack of confidence, independent learning ability is weak, inefficient learning. These problems of high school students in chemistry study have seriously affected their learning of chemistry and some have even created a vicious cycle. How to effectively eliminate these problems in students, improve learning efficiency, the author combined with teaching practice, talk about a few superficial understanding.