Abstract: Aiming at the problems in the connection of online and offline teaching in colleges and universities in the post-epidemic era, based on constructivism, the current problems in the connection between online and offline teaching are analyzed and summarized, combined with the characteristics of college programming courses, and the lines are sorted out. The design ideas of online and offline inquiry-based teaching, using the problem-guided model, designing online and offline teaching programs with different degrees of convergence, and relying on the computer science and technology major of Shandong Jiaotong University for practice, improvement and perfection, and achieved good results Effect.

Key words: MOOC, Problem guidance, Cohesion, Teaching mode