Based on the experiences of team teaching the course "English Teaching Methodology" to 2 classes of adult in-service teachers in a teacher training university in China for one year, this paper intends to discuss the background and the concept of the term team teaching, summarize the models of the team teaching, how the models of team teaching was applied in the course "English Teaching Methodology" and its implication to EFL teaching, and provide team teachers with specific tips on how to teach collaboratively and effectively as equal partners in the same EFL classroom.