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笔者有幸作为评委参加了本区的一次同文赛课活动,参赛选手使用的是苏科版八(上)的教材,赛课课题是《照相机与眼睛视力的矫正》,共有十一名选手参赛.在听课过程中有一个上课片段引起了我的注意,在讲到照相机的调节原理时,为了说清物
The author was fortunate to have participated as a jury member in a fellow essay class event in the district. The contestants used the textbook of Suke version eight (above). The lesson topic was “Correction of the Eyesight of Cameras and Eyes.” A total of eleven contestants participated. During the lectures there was a lesson caught my attention, when it comes to the principle of the camera adjustment, in order to clarify things