“问题教学模式”在中学化学教学中的应用浅析东北师大附中李桢教学模式的研究是近几年现代教学论研究的一个热点。这种研究趋势的产生，主要是由于教学理论与实践中一直存在着“理论下不来”、“实践上不去”的现象；在科技信息飞速发展、教学观念不断更新转变的时代，如... The application of “problem teaching model” in middle school chemistry teaching The research on the teaching model of Fu Li’s middle school in the middle school of Northeast Normal University is a hot topic in the research of modern teaching theory in recent years. This kind of research trend is mainly due to the phenomenon that “theory does not come down” and “does not go through in practice” has always existed in the teaching theory and practice; in the era of rapid development of science and technology information, and the concept of teaching has been continuously updated, such as...