论文部分内容阅读
实验材料选择是否合理是实验成功与否的关键环节之一 ,选择实验材料一定要符合当地实际情况。1 用红花洋蹄甲代替桃花观察花的基本结构在初中《生物》(人教版 )第一册 (上 )实验十二“观察花的基本结构”这个实验中 ,课本的实验材料主要选用桃花。虽然桃花较为常见 ,且具有完
Whether or not the choice of experimental materials is reasonable is one of the key aspects of the success of the experiment. The choice of experimental materials must meet the actual situation in the local area. 1 Basic structure of observing flowers with safflower shrubs instead of peaches In the experiment of junior high school “Biology” (People’s Education Edition) Book 1 (top) Experiment 12, “The basic structure of observing flowers”, the experimental materials of textbooks were mainly selected. Peach blossoms. Although peach is more common, it has