Khmer
On June23, 2022, Mr. Nou Srey Sros, a chemistry teacher at American Intercon School, Mao Tse Tong campus, taught a lesson about identification of hydrogen gas to 10th graders in the morning and afternoon.
In this lesson, the teacher selected some main points of the lesson to demonstrate to the students which included how to identify hydrogen gas and using experiment materials. As a result, students received clear understanding of this hydrogen gas identification experiment, and the experiments provided results which were similar to the theory in the lesson. Due to this, the students and teacher were satisfied with the experiment practice.
