The goal of this lecture is to aid in understanding the tongue’s role in craniofacial development in early childhood and early adolescence and how that plays into (dys)function as adults. Additionally, the audience should learn practical ways to screen for tongue functional concerns, who, how, and why to refer and empower the practitioner to talk to their patients/parents of patients about tongue functional disorders in a way that is easy to understand so that patients will be encouraged to treat the issue.