所谓问题情境的教学设计,就是指根据学科知识的内在逻辑体系和学生的认知规律,通过精心创设情境来设计问题,从而激发学生探究的欲望,培养学生学以致用的能力。但是,在教学实践中问题情境设计的失误随处可见。2011年11月苏州市教科院组织了高中课改展示活动,省常熟中学盛振宇老师参加了本次展示课,课题是 The so-called problem-based teaching design refers to the design based on the internal logical system of subject knowledge and the students’ cognition rules, through elaborate creation of situations to stimulate students’ desire to explore and cultivate students’ abilities to learn effectively. However, mistakes in the design of problem situations in teaching practice can be seen everywhere. November 2011 Suzhou Academy of Science organized a high school curriculum reform demonstration activities, the province Changshu High School Sheng Zhenyu teachers participated in the demonstration class, the topic is