互联网+与教育教学的深度融合促进了微课、慕课等线上教学的快速发展。线上教学具有内容丰富多样、教学安排柔性等优点；传统的线下课堂教学具有交互性强、学情反馈及时、情感化施教等优点。如何将线上和线下教学优势有机结合，是新时期高校“金课”建设的重要课题。针对线上和线下教学有机互补衔接的关键问题，提出了基于改进BOPPPS的线上线下混合式教学方案，包括“课前知识自学—课堂知识内化--课后知识强化”三阶段；设计了适用的案例式和交互式教学方法；并以“工程经济与管理”课程为例开展教学改革实践。教改实践表明新教学方案和方法可满足学生多层次个性化学习需求，提高了学习积极主动性和教学质量。研究成果可为混合式“金课”建设提供参考。

Deep integration of Internet+ with education and teaching has promoted a rapid development of online teaching such as micro-class and MOOC. Online teaching has the advantages of rich contents and flexible teaching arrangement. The traditional offline classroom teaching has the advantages of strong interaction, timely feedback, and emotional teaching. How to utilize their respective advantages becomes an important topic for "Golden Course" construction in the new era. Considering key online and offline teaching complementary links, a BOPPPS based online and offline blended teaching scheme was proposed, including “pre-class knowledge autonomous learning; in-class knowledge internalization; post-class knowledge enhancement”. The appropriate case teaching and interactive teaching methods were introduced into the scheme. The teaching reform practice was carried out in the "Engineering Economics and Management" course and shows that the new teaching scheme and methods stimulate the student learning initiatives, meet their hierarchical learning needs, and improve the actual teaching quality. The research results can provide reference for the blended teaching “golden class” construction.

大连理工大学国家本科教学质量工程项目(ZL2020098)和本科教学改革项目(YB2020039)