On May 17, 2024, American Intercon School committee at Choam Chao Campus organized the experiment on the topic of “The Combustion Reaction of Methane” for the 10^th graders led by Teacher Theary Sann, a chemistry teacher. According to this experiment, Teacher mentioned the main points for students to understand how the combustion reaction of methane worked based on the real experiment in science room.  In addition, Teacher presented detailed lesson theory related experimental process for all students to understand with a good result. After detailed explanation of procedure experiment, he divided students into groups of 4 members. All students cooperated well in experiment practical which guided by her till they succeeded as their expectation.