一、让学生自己做好充分准备后才走进实验室这点非常重要,以往的教师也提出课前要预习,可是学生通常是随随便便看看书,甚至很多时候连书都没有看。老是想着实验前老师会告诉步骤的,带着这种依赖的心理来做实验。结果实验做得匆匆忙忙,糊里糊涂,实验是做了,但毫无效果。我根据以往的经验教训,学生实验不能白做,做实验的1-2天前告诉他们,要求每个学生都要带着自己写好的实验原理和主要材料(有时可以选材不同)、简洁步骤来上实验课,让学生成为做实验的主 First, let the students fully prepare themselves before entering the laboratory. This is very important. Previous teachers also proposed to preview before class, but students usually read the book casually or even even when the company did not even read. Always think of the teacher before the experiment will tell the steps, with this psychological dependence to do experiments. The results of the experiment done in a hurry, confused, the experiment is done, but no effect. According to past experience and lessons, students can not experiment with the experiment. They should be told 1-2 days before the experiment, asking each student to bring their own written experiment principle and main materials (sometimes different materials), simple steps Come to the experimental class, let the students become the main experiment