Group discussion is a method of teaching in which the teacher organizes and controls the teaching process. In'this method, the class is divided into small groups so that every single member of the class contributes to the work through discussing about a particular topic to come up with common ideas of the group. The purpose of this approach is to maximize opportunities for every member to join the work and show their abilities
and to promote the understanding, cooperation, competition and solidarity among members of the class. In fact, organizing the teaching process in this way faces quite many difficulities due to the student's inactivenesss. In this paper, the author present ways of teaching and the things need to consider in the organization of work and group discussion in the .teaching of technologycal subjects to promote positive learning of students in the teaching process.