Divide students up into teams of 4, and number them off so each person plays the role of Team Member 1,2,3, or 4. Ask a question from the worksheet and provide 30-60 seconds for each group to agree upon an answer. They should ensure every person on the team understands the reasoning, as they won't know which team member will be responsible for answering the question. Then, randomly call out a number between 1 and 4. The person on each team whose number was called writes his or her answer on an individual dry erase board (or sheet of paper). Team members can NOT help in any way, or they will lose a point. On your signal, the designated student holds up his or her board/paper to show the answer, and you (or a student volunteer) can award and record points on the board. When time is up, the team with the most points wins.
Group students into teams of five and pass out one copy of the same worksheet to each group. Have the group cut apart the worksheet so each question is on a separate strip or 'card.' Students then place the stack face down and choose roles (to be Person 1,2,3,4, or 5.) Explain how the activity is played and write the following team roles on the board for class reference: Person 1 on each team chooses a card and reads the question or problem aloud to the team. Person 2 paraphrases the question and/or offers clues to the answer. Person 3 says the answer and explains his or her thinking. Person 4 explains why he or she agrees or disagrees. Person 5 places the question card in one of two piles, Agree or Disagree, and then takes on the role of Person 1 for a new 'round' of play and reads the next question. (Person 1 now becomes Person 2, and so on. Because there are an odd number of people on each team, the roles–1,2,3,4 and 5–will shift for each question so that everyone gets a turn to play each role.)