PowerTeaching Math is built around the Success for All Foundation's Cycle of Effective Instruction. The Cycle of Effective Instruction is based upon STAD, Student Teams Achievement Divisions, a cooperative-learning process defined by Robert Slavin in his book Student Team Learning.
The arrows indicate that this is a cycle; the arrows move in both directions to indicate that reteaching or extra practice can be planned to meet student needs:
According to research, three elements are key to making cooperative learning effective: team recognition, individual accountability, and equal opportunities for success.
In addition to the Cycle of Effective Instruction, PowerTeaching emphasizes team goals that can only be achieved when all members of the team are learning and improving. Because individual students compare their scores with their own past performance, and no one else's, every team member is able to contribute equally to the success of the team.