目前,问题教学被广为使用,但问题教学在使用中存在一定的不良现象,诸如即问即答、问题随意以及“满堂问”等降低了问题的效度。有效提问,是高效课堂的活化剂。文章具体阐述问题设计的层次性、启发性、目的性等,构建有效课堂的几个实践性的策略。 At present, the problem teaching is widely used, but the problem teaching in the use of certain undesirable phenomena, such as the Q & A, the random question and “full of questions ” and so reduce the validity of the question. Effective questioning is an activator of efficient classrooms. The article elaborates the issue of design level, inspiration, purpose, etc., to build effective classroom several practical strategies.