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1引言笔者于2011年11月面向全市开设了一节题为《探究凸透镜成像规律》的公开课.本课的主要目标是让学生通过科学探究的活动,体验科学探究的过程与方法,最终使学生获得对凸透镜成像规律较为清晰的认识.在课前准备时,反思以往的教学体会,注意到了一些具体的值得思考与研究的问题:(1)实验器材方面:用蜡烛做发光体简单易行,但是烛焰易摇晃且大小不定,其高度很难测量,不便于比较像和物体
1 Introduction In November 2011, the author opened an open lecture titled “Exploring the Law of Convex Lens Imaging.” The main objective of this course is to enable students to experience the process and methods of scientific inquiry through the activities of scientific inquiry and ultimately Students get a clear understanding of the imaging laws of the convex lens.In preparation for the lesson, reflect on the past teaching experience, noted some specific issues worth considering and research: (1) experimental equipment: the candle light is easy to do , But the candle flame easy to shake and size, its height is difficult to measure, not for more like and objects