This study was aimed to observe real events in the classroom, analyze the participation pattern in the interaction between the teacher and students, investigate what factors induce a specific pattern of interaction, and thus lead teachers to understand the process of teaching/learning English. The subjects were two elementary school teachers and two 6th grade classes. This study included the data from two interviews, nineteen times of class observation, field notes, and questionnaires. The results showed that in the illustration and induction step, T-Ss pattern was widely used. But in the interaction step, the teachers showed a little difference between each other: one teacher preferred T-Ss and T-Sgr patterns to other patterns, and the other teacher preferred T-S1-T pattern. Teachers proceeded their classes for enhancing communicative ability which was the goal of the 7th curriculum. These results led to the conclusion that the teacher’ training program should include the content on within-the-class interaction in the EFL classroom. And also, there was a need to employ teaching specialists who are able to give students opportunities for meaningful negotiation through interaction with them. These teaching specialists should be encouraged and trained by providing them with appropriate reinforcements, and this would lead to the enhancement of speciality of the elementary English subject.