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在初中《植物学》中,把光合作用需要光和二氧化碳的实验,使用两套装置分别进行,尤其是光合作用需要二氧化碳的实验,装置设备麻烦,不便移动,还需另装一套对照实验,同时实验材料是离体的.我在多年的教学实践中,学生们经常提出,采下的天竺葵枝叶会不会死掉,以及采下的叶片与植株上的是否一样等问题,针对学生的疑问,我对本实验进行了改进,取得满意的结果.
In the junior high school “Botany”, photosynthesis requires light and carbon dioxide experiments, using two sets of devices were carried out separately, especially the photosynthesis requires carbon dioxide experiment, equipment and equipment inconvenient to move, but also need another separate set of control experiments, At the same time the experimental material is ex vivo.Many years of teaching practice, students often put forward, taken by the geranium foliage will not die, as well as the adoption of the leaves and plants on the same issues such as the problem for students , I made improvements to this experiment and achieved satisfactory results.