初中学生在学习物理时,常常感觉物理知识难以理解,并且分支较多,如果一个知识点理解错误,就会导致很多的问题答错,不仅得不到理想的分数,同时还会影响日后的学习。根据现阶段初中学生的学习特点以及物理教学中的难点和重点,目前的众多教育工作者一致认为,采用“控制变量法”能帮助学生更好地学习物理知识,并且可以在很大程度上达到一个理想的教学效果。 When studying physics, junior middle school students often feel that the physical knowledge is difficult to understand and there are many branches. If a knowledge point is wrongly understood, many problems will be answered incorrectly, not only failing to obtain an ideal score, but also affecting future learning . According to the junior middle school students’ learning characteristics and the difficulties and focuses in physics teaching at present, many educators at present agree that the adoption of the “controlled variable method” can help students to better understand their physical knowledge and can, to a large extent, To achieve an ideal teaching effect.