科学实验课要注重培养学生的动手操作能力、观察能力、思维探究能力。在实验操作中经常会出现一些常规教学设计之外的“意外发现”。这些意外发现有时是实验失败中发现的,有时是实验观察中发现的,有时是学生瞬间的灵感产生的。关于实验教学中的种种意外发现,我们应当及时予以关注从而促进课堂生成,训练学生的创新思维,培养学生的创新能力,由意外生成精彩,成就实验教学之美。一、意外发现有利于改进实验 Scientific experiment class should pay attention to cultivate students’ hands-on ability, observation ability, thinking ability to explore. There are often “unexpected findings” outside of the usual instructional design in the lab. These unexpected findings are sometimes found in experimental failures, sometimes found in experimental observations, and sometimes inspired by students’ moments of inspiration. With regard to all kinds of unexpected discoveries in experimental teaching, we should pay close attention in time to promote classroom production, train students’ innovative thinking, cultivate their innovative abilities, and create wonderful surprises to achieve the beauty of experimental teaching. First, the unexpected discovery is conducive to improving the experiment