This technique stimulates student learning through movement and discussion, and it can also be used as a formative assessment. Students are presented with a controversial statement or are asked a question. In each of the four corners of the classroom, an opinion or response is posted. Students express their opinion or response by standing in front of one of four statements, and then talking to others about why they have chosen their corner. Four Corners promotes listening, verbal communication, critical thinking, and decision-making.