Teams are ubiquitous in schools in the 21st Century; yet training for effective teaming within these settings has lagged behind. The authors of this article developed 5 modules, grounded in the science of team training and adapted from an evidence-based curriculum used in medical settings called TeamSTEPPS®, to prepare instructional and administrative personnel for teamwork and to enhance their teamwork skills. The resulting 5 modules, available for download on the American Psychological Association website, are collectively called Teach Teamwork and include: Introduction to Teams and Teamwork, Communication, Mutual Support, Situation Monitoring, and Leadership. In this article, the modules and supplemental materials are described, along with recommendations for implementation.