Li Jilin is a famous contemporary educator and the founder of Chinese situational education. A complete review of Li Jilin's life history will not only help reveal the creation process of the theoretical system and operating system of situational education, but also help explore the inner rules of ordinary primary school teachers growing into educators. It can also provide typical cases for promoting the educator's spirit in the new era. This book is the first chronological work in China that details Li Jilin's life and ideological development history. The book adheres to the compilation principle of integrating academic and documentary aspects, and is based on detailed historical documents. Through the collection, textual research and arrangement of historical materials, combined with interviews with relevant people, it comprehensively records Li Jilin's life story, family life, daily interactions, educational practice, scientific research, The main works, commendations and awards, social activities and academic evaluations focus on presenting her exploration process from situational teaching to situational education, situational courses and then to situational learning. It fully demonstrates her 81-year life journey of creating glory in the ordinary, objectively reflects her true image, and accurately reveals her main contributions and historical influence.