On March 26, 2022, Mr. Ouk Ekkumpheak, biology teacher and his assistant, taught a lesson about observing brains of chickens and frogs to the ninth grade students of American Intercon School, Mao Tse Tong Campus, Quach Leng Hao building. The main purpose of this observation was to enable students to understand the cerebellum, cerebellum and cervix. In addition, students received a better understanding of the lessons, and understood how to do experiment, use experiment tools, and the results obtained after the experiment. At the end of the observation, the students were happy because they could practice directly with teachers and classmates in a friendly atmosphere.