Group work has "a lot" going for it. It incorporates the social-cognitive and social-emotional aspects of learning and can lead to memorable, engaging lessons and increased learning for students. But group work can also fall flat--and cause student disengagement--if not carefully designed and assessed. This article presents four elements to doing group work "right": (1) Establish a clear purpose for working in groups; (2) Use heterogeneous groups, but offer choice if possible; (3) Use flexible seating and design tasks so everyone contributes; and (4) Grade "individual" learning and assess collaboration separately.