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在高中物理总复习过程中,许多学生的感觉是:一听就懂,一做就错.究其根源是学生对相近的物理概念和规律混淆不清,而导致错误的选择和推断.为了澄清学生的模糊认识,笔者在高中物理总复习教学中常采用类比的教学方法.打破知识的章节和单元界限,对相近的物理概念和规律进行专题复习.引导学生自己归纳总结,既节省了课时,又增大了课容量,使学生分析综合能力得到提高.下面仅就带电粒子的电偏转和磁偏转的课题谈谈专题复习的做法.
In the process of reviewing senior high school physics, many students feel that they can understand it and do it wrong. The root cause is that students are confused about similar physical concepts and laws, resulting in erroneous choices and inferences. Students’ vague understanding, the author often adopts an analogy teaching method in the review of high school physics, breaks the chapters of knowledge and unit boundaries, and conducts thematic review of similar physical concepts and laws. It guides students to sum up and summarize them, which saves time and time. The class capacity has been increased to enable students to improve their comprehensive analysis capabilities. The following section is devoted to the topic of practice review on the topics of electric deflection and magnetic deflection of charged particles.