Recently, 122 teachers and students from Haidian District Teacher Training Affiliated Experimental School in Beijing went to Lijiang, Yunnan to carry out a study and practice activity with the theme of "A drop of water passes through Lijiang". During the voyage, the crew of Capital Airlines held a lively "cloud classroom" for the students at an altitude of 10000 meters. It is understood that the theme of the teachers and students' study trip to Lijiang comes from an essay in the middle school Chinese textbook called "A Drop of Water Passing Through Lijiang". Through describing the journey of a drop of water, it tells the historical development, Dongba culture, cultural customs, geographical characteristics, natural resources and other knowledge of Lijiang. The cabin crew combines aviation expertise with the cultural and historical stories of Lijiang, sharing small knowledge such as Lijiang's history, geographical features, and ethnic customs with classmates, and organizing the "Lijiang Cultural Award Q&A" activity. It is reported that more than 500 teachers and students participated in the study activities of Haidian District Teacher Training Affiliated Experimental School, which departed in five batches with transportation support provided by Capital Airlines. The flight transportation support work will continue until the end of November. (New Society)