It is not possible to involve the whole class in any activity at once. In Group Teaching Method, small groups can be given different activities and individual participation in the activity can be assured. Each member of the group can be assigned a specific task to complete and thus the Group Teaching Method emphasizes on Activity Oriented Teaching-Learning Process in the classroom.
Lesser use of blackboard: Blackboard should be used only if a particular concept is to be taught to the whole class. It is a good teaching tool and very helpful to explain concepts to the class but not so good for tiny tots who want individual attention and involvement in learning process where not only eyes and ears but their hands and hearts are to be involved in the process of learning. The group teaching encourages lesser use of blackboard and more activities in the classroom
Learning more than teaching: Learning is a continuous process. Teacher is to facilitate such an environment where the process of learning can be pushed in the right direction. Teaching in group emphasizes on learning more than teaching. Student Interact with each other and learn in their peer groups.