《微量元素与人体健康》精品视频公开课的建设与思考

The construction and thought of excellent open video courses of trace elements and human health

“微量元素”是《生物化学》教材中学生自学的内容，为了让学生及社会大众能科学认识微量元素与人体健康的关系，关注膳食营养和环境污染对人类社会的影响，课题组以此作为视频公开课的内容。课程基于受众在线教学规律和在线学习需求，以实现优质资源的共享和普及为目标；应用典型案例，生动形象地阐述常见微量元素的来源、作用、与健康及疾病的关系等。在课程建设中，体会到精选授课内容、优选讲授教师、专业录制团队是视频公开课制作成功的基本要素。实践中，将视频公开课与“翻转课堂”教学相结合，在提高学生自主学习能力、拓展知识等方面获得了较高的满意度。

Trace elements is the main content in Biochemistry and Molecular Biology courses through students＇ self-study. This topic takes the trace elements as the content of open video courses to make the medical students and the public be able to scientifically understand the relationship between trace elements and human health and pay attention to the influence of dietary nutrition and environmental pollution on human society. This course is based on audience online teaching rules and online learning needs, to achieve high-quality resources sharing and popularity as the goal, using typical case, vividly describes the source of the common trace element, function, and the relationship between health and disease. In the course construction, we realize that the selection of teaching content, optimization of teachers, professional recording team are the basic elements of the success of open video courses production. The combination of open video courses and flipped classroom teaching has gained a high degree of satisfaction in improving students＇ independent learning ability, expanding knowledge and so on.