sentences:  Central to CBI is the belief that learning occurs not only through exposure to the teacher's input, but also through peer input and interactions.Accordingly, students assume active, social roles in the classroom that involve interactive learning, negotiation, information gathering and the co-construction of meaning (Lee and VanPatten, 1995).William Glasser's "control theory" exemplifies his attempts to empower students and give them voice by focusing on their basic, human needs