Abstract: The “double reduction” policy, implemented in 2021, underscores the importance of leveraging university resources for enhanced after-school education. In response, Nankai University's Chemistry Science Base integrates university expertise and resources, optimizing team design. This involves active participation from high-level talents, experimental center teachers, and undergraduates in crafting after-school courses. Adopting a flexible “come in, go out” approach, we combine lectures, teaching, experiments, and research to deliver chemistry popular science courses tailored for primary and secondary school students of varying ages. This initiative aims to develop a series of targeted, content-rich, and characteristic chemistry popular science courses emblematic of Nankai Chemistry.

Key words: Double reduction policy, Science popularization of chemistry, Course design, Primary and Secondary School, After-school service