“叶绿体中色素的提取和分离”是上海科学技术出版社《生命科学》教材第四章第二节“光合作用”中的一个重要实验,主要是让学生通过实验操作和实验观察,初步学会提取、分离叶绿体中色素的方法和技能;引导学生将书本知识和实验现象联系起来,培养学生的探究能力和分析概括能力。对于本实验的教学,最初的教学方法是,在进行实验之前由教师详细说明实验原理以及实验步骤,并逐一指出各实验步骤的意图、注意事项以及各试剂的作用。但通过这样的教学活动,教师们自以为已经 “Chloroplast pigment extraction and separation ” is an important experiment in “Photosynthesis ” of the fourth chapter of “Life Science” teaching material of Shanghai Science and Technology Press, mainly for students to observe through experiment and experiment , Initially learn to extract and separate the methods and skills of chloroplast pigment; guide students to link the book knowledge and experimental phenomena, to develop students’ inquiry ability and analysis ability. For the teaching of this experiment, the initial teaching method is to explain the experimental principle and experimental steps in detail before the experiment by the teacher, and point out the intent and precautions of each experimental step and the role of each reagent one by one. However, through such teaching activities, teachers think they have already done so