Effective teamwork relies on coordination that spans different modalities, time scales, and changes over time. To do complex work, coordination patterns may arise and dissipate across team members’ behavior, knowledge, language, physiology, and technology. In this talk, I discuss the team coordination dynamics approach that explicates important properties of coordination, several methods for studying them, along with some empirical examples. I conclude with ideas and examples from ongoing projects that describe how we can advance the scientific understanding of the time-varying properties and functions of multi-modal team coordination.