当前对新课程标准下的高效课堂的研究和论述颇多,典型的有杜郎口模式和南通的活动单教学模式。从总体上看,它们均强调课堂教学的高效,即追求课堂效率的最大化和效益的最优化。那么,如何利用尽可能少的时间、精力以及物力在课堂教学的过程中促进学生思维能力、创新能力、实践能力等多种能力的提升,进而实现促进整体素质发展的高效教学活动呢?笔者就在高中化学教学中进行了一些有益的尝试,即以问题为抓手:问题的发现——问题的呈现——问题的探究——问题的解决和延伸,让问题成为化学高效课堂构建的助推器,取得了较好的教学 At present, there are quite a lot of researches and expositions on the efficient classroom under the new curriculum standards. There are typical Du Langkou models and Nantong activity instructional modes. Generally speaking, all of them emphasize the efficiency of classroom teaching, that is, the pursuit of the maximization of classroom efficiency and the optimization of benefits. So, how to use as little time, energy and material resources as possible to promote the ability of thinking, innovation and practical ability of students in the process of classroom teaching so as to realize the efficient teaching activities that promote the overall quality development? Some useful attempts have been made in high school chemistry teaching, that is, taking problems as the starting point: the discovery of problems - the presentation of problems - the exploration of problems - the solution and extension of problems so that problems can become a boost to the construction of chemistry-efficient classrooms Device, made a good teaching