The CPM curriculum is guided by the philosophy that students need to be active participants as they develop their own mathematical understanding. The study team structure—students working in teams of two or four—creates a setting in which students are continuously in the presence of others with whom they can discuss, share ideas, and articulate their thinking. In study teams, students refine their ideas, questions, and approaches in the security of a few classmates, where it may be easier to take risks – especially asking questions – than in a large class setting. Students consistently communicate with teammates who may see things differently, allowing them to discover new connections between ideas and encouraging them to justify their ideas to their peers.
CPM Video on Setting Up Study Teams