一个成功的演示实验能以最直观的感性材料启发学生的思维,使学生在观察实验中建立起准确的第一印象,起到千言万语说不清,一看实验就分明的作用,给学生留下深刻的印象。一、优化教学程序,不是简单地就“实验”论“规律” A successful demonstration experiment can inspire the student’s thinking with the most intuitive sensibility materials, so that students can establish an accurate first impression in the observation experiment, and play a thousand words to explain it clearly. Left a deep impression. First, optimize the teaching program, not simply on the “experiment” theory “law”