Abstract—Diversifying after-school activities, experiential activities outside the classroom, outside the school so that students have many conditions to expand their horizons, develop their thinking, experience reality, develop talents. For many years, the school has implemented the program content and organized to teach life skills to students with the following contents including knowing how to live with an ideal, have faith; practicing communication skills, behavioral culture in schools; skills for coping with unhealthy temptations; knowing to take care of themselves and friends; skills for solving problems around them; how to access and select information to prevent school violence. Experimental activities are compulsory educational content in the secondary school education program. This is a dominant content to integrate educational content including education to develop communication skills for students. Experimental activities help students in the process of experiencing personal values, establishing relationships between individuals with the collective, with other individuals, with the school environment and living environment. This is the condition for the development and increasingly perfecting of communication skills for students.