This learning activity, titled 'Theory Match-Up Mania!', is designed to help students match key psychological theorists—Freud, Erikson, Skinner, and Piaget—with their respective core theoretical perspectives. The objective is for students to gain a clear understanding of these theorists and how their theories apply to human growth and development. The activity begins with a quick warm-up where students collaborate to pair theorist names with their core theories using provided 'Theory Cards'. A 'Cheat Sheet' glossary outlines each theorist's main focus: Freud's psychoanalytic approach, Erikson's psychosocial development, Skinner's behaviorist perspective, and Piaget's cognitive theory. Following the matching, students participate in a peer check and reflection to discuss and verify their answers with another group, fostering collaborative learning. Finally, students are encouraged to reflect on the identifying characteristics that helped them understand each theorist's contributions to psychology.