Teaching students how to work in lab groups can be tough. This bundle includes tools to help students to work well and productively in groups of four. It is geared to lab groups of four, but one of the roles can be eliminated if necessary or two can share a job. Each student has a role that includes a title and directions. Also included are "sound bites" or quotes to give students ideas about how to perform the job. This bundle includes a handout for student with all of the roles in an editable word document and 11x17 poster size with one role per poster.