Description: Use playing cards, numbers, different lengths of straws or some other way to choose students at random to represent their group. This can be to explain or demonstrate something (for example, protein synthesis), to report out, or to turn in a piece of written work. Students know that the whole group's evaluation will be based on the selected student's performance.
Rationale: This is a very effective strategy for holding students accountable for participation in group activities. It encourages students who are struggling to ask group members (or the teacher) for help, and it encourages more capable students to help and tutor their groupmates. It has the important collateral benefit of limiting the amount of work the teacher has to evaluate!