问题驱动法融入线上线下混合教学的实践探究——以《数据结构》课程为例

Practical Exploration of Problem-Based Learning Integrated into On⁃line and Offline Blended Teaching——Taking the“Data Structures”Course as an Example

现代新媒体技术在教育教学实践中的广泛应用,线上线下混合教学已成为一种新的教学模式,线上教学有其显著的优势,能够跨越时空限制,有效弥补线下教学的不足,但线上线下混合教学实践过程中,出现一些亟待解决的问题,如两者融合度欠缺、情境创设乏力、提问答疑效率偏低、师生互动不充分等。问题驱动法是体现学生中心地位、围绕问题寻求解决方案的一种教学方法,强调问题意识、注重学生主体,课前根据教学知识点设计问题;课中以问题解决为抓手,提高学生参与度、激发学生求知欲;课后设计练习,构建“课前准备—课中实施—课后反思”三阶段模型,有效解决了线上线下混合教学中的问题,提升教学实效。

Modern new media technology is widely used in education and teaching practice,and online and offline blended teaching has become a new teaching mode.Online teaching has its significant advantages.It can transcend time and space constraints and effectively make up for the shortcomings of offline teaching.However,in the process of online and offline blended teaching practice,there are some urgent problems that need to be solved,such as the lack of integration between the two,weak context creation,low efficiency of Q&A and insufficient teacher-student interaction.Problem-based learning is a teaching method that reflects the centrality of students and seeks solutions around problems.It emphasizes problem awareness and focuses on students as the main actors.Before class,questions are designed based on teaching knowledge.In class,problem-solving is stressed and students’desire for knowledge is stimulated.After class,exercises are designed.It is necessary to construct a three-stage model comprising preparation before class,implementation in class and reflection after class,which can effectively solve the problems in online and offline blended teaching and improve teaching effectiveness.