“问题设计”是开展合作学习活动必须解决的一个核心问题.问题设计的质量影响着生生合作探究的效果.教师应钻研教材,掌握学情,设计出高质量的问题,使之服务于课堂教学,培养学生合作能力. “Problem Design ” is a core issue that must be solved in cooperative learning activities.Quality of problem design affects the effect of students’source cooperation exploration.Teachers should study teaching materials, master the situation and design high-quality problems to make them serve Classroom teaching, training students ability to cooperate.