“问题串”教学是教师根据教学目标、教学内容、学生实际等设计出一组相互关联的问题,并依此开展教学活动。“问题串”的设计为学生搭建提升思维的平台,提高学生自主学习的意识。本文主要了阐述了“问题串”的设计原则及有效策略。 “Question string ” teaching is the teacher based on teaching objectives, teaching content, students and other practical design a set of inter-related issues, and thus carry out teaching activities. “Question string ” design for students to build a platform to enhance thinking, improve students’ awareness of autonomous learning. This article mainly expounds the design principle and effective strategy of “problem string ”.