观察植物细胞有丝分裂实验是高中生物的重要实验之一,学生通过该实验能更好地学习有丝分裂部分内容,对装片制作等实验技能有进一步的提高,并初步掌握绘制生物图的方法。然而,笔者在多年的实验教学中发现,该实验的教学往往因根尖材料准备不充足、根尖中处在分裂期的细胞很少、学生制作的装片达不到要求等情况,导致大部分学生实验均不能成功。如何提高实验的成功率呢?经过多年的摸索,笔者终于得出一套易于操作而且成功率很 Observation of plant cell mitosis experiment is one of the important experiments in high school biology. Through this experiment, students can better understand the contents of mitosis, and further improve the experiment skills such as prefabrication, and preliminary grasp of the method of drawing biological map. However, the author found in many years of experimental teaching, the experimental teaching is often inadequate preparation of apical material, the root tip of cells in the division of seldom, students made the film to meet the requirements and so on, resulting in large Some students can not experiment successfully. How to improve the success rate of experiments? After years of exploration, I finally come up with a set of easy-to-operation and success rate is very