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学习凸透镜成像规律时,常通过实验探究,分析归纳得出凸透镜成像规律,然后强化记忆.但是,随着时间的推移,到中考复习时凸透镜成像规律几乎遗忘殆尽,究其原因没有抓住两点三区间,建立凸透镜成像动态变化图景.如果能抓住两点三区间,把握凸透镜成像变化的转折点和变化规律,建立凸透镜成像动态变化图景,分析凸透镜成像,就能加深理解,形成鲜活的印象.
When learning the imaging rule of convex lens, we often get the law of imaging of convex lens through analyzing the experiment, and then strengthen the memory.However, with the passage of time, the imaging rule of convex lens is almost forgotten in the review of senior high school entrance examinations, Point three intervals, the establishment of the dynamic imaging of convex lens imaging .If you can seize the two three sections, to grasp the turning point of convex lens imaging changes and changes in the law to establish dynamic imaging of convex lens imaging, analysis of convex lens imaging, you can deepen understanding of the formation of a fresh impression.