高中新教材有许多学生必做实验 ,为了使学生更好、更快、更节约地做好实验 ,我对一些实验材料和实验操作做了一些探索和改进 ,取得了较好的实验效果。1　观察细胞质的流动由于实验用的黑藻必须到池塘、小河中采集 ,取材不方便 ,我试着用新鲜的白菜幼嫩叶或叶柄的表皮细胞 ,带根 There are many students who must do experiments in the new high school textbooks. In order to make students do experiments better, faster, and more economically, I did some exploration and improvement on some experimental materials and experimental operations, and achieved good experimental results. 1 Observe the flow of cytoplasm. Since the experimental black algae must be collected in ponds and small rivers, it is not convenient to obtain materials. I try to use new epidermis cells of young leaves or petioles of Chinese cabbage.