做好学生实验的教学准备是上好实验课的根本保证。但是,近年来各级各类刊物关于学生实验的课堂教学研讨多,而关于学生实验的教学准备研讨较少,这对从事教学第一线的教师缺乏必要的指导,致使生物教学失去了应有的魅力,达不到实验教学激发学生的学习兴趣、训练和培养能力的目的。针对这种情况,现以初中生物教材“探究种子成分”实验为例,就学生实验教学准备的方法 Preparing students for experimental teaching is a fundamental guarantee for a good experimental class. However, in recent years, there have been many seminars in various types of periodicals on student experiments, and there have been few research preparations on student experiments. This has led to the lack of necessary guidance for teachers engaged in teaching on the front lines, resulting in the loss of biological teaching. The charm does not reach the goal of experimental teaching to stimulate students’ interest in learning, training and ability to develop. In view of this situation, the junior high school biology textbook “exploring the composition of seeds” experiment is taken as an example to prepare students for experimental teaching.