一、本实验过程中存在的问题人教版初中物理教材“探究凸透镜成像规律”实验,采用蜡烛作为光源,在实验中我们发现:白天在教室做实验时,成像的亮度不够,光线暗,效果不好,尤其是做幻灯机成倒立、放大实像的实验,图像放大了,光线发散了,白天在教室里就更不清晰了,演示效果不好。 First, the problems in this experiment PEP Teaching material “exploration of convex lens imaging rules ” experiment, the use of candles as a light source, in the experiment we found: during the daytime experiments in the classroom, the imaging brightness is not enough, dark light , The effect is not good, especially to do slide projector into an inverted, magnified real experiment, the image is enlarged, the light is divergent, more unclear in the classroom during the day, the demonstration effect is not good.