Tiffany splits the class in half. Half of the class receives problem A. The other half receives problem B. Students work independently for five minutes before partnering up with someone who has the same problem for 10 minutes. During this time, they give and get help on their problem. Then, students partner up with someone who had a different problem and they review and critique each other's work.
Michelle's students determine which supermarket is offering the better deal for bananas. Once students complete the problem, Michelle asks the students to stand up and pair up with a partner that has a different answer.