This document provides instructions for an activity called "Academic Mini-Mixers: Teamwork Edition II - Tangrams" that aims to teach students cooperation, teamwork, and classroom procedures through puzzle solving. The activity involves students working in groups of 4 with assigned roles to complete tangram puzzles using only their designated puzzle pieces. It recommends doing this as a school-wide or period-by-period activity and having students reflect on what worked and what didn't in their group process. Links to printable tangram materials are also provided, as well as suggestions for extending the teamwork concept into daily classroom routines and group work.