In this lesson, we explore two psychological theories that help inform play therapy assessment and interventions. These theories include the bio psycho social model and Erikson’s developmental theory. We analyze the intersection of development, children’s play and how that may present in play therapy. Lesson 2 focuses on theme and provides an in-depth view of how to capture meaning of themes in children’s play. This section includes important components of identity such as culture and explore ways in which a play therapist can develop a culturally sensitive practice..