Self-Determination Theory (SDT) is a psychological framework that focuses on human motivation and personality. It suggests that people are most motivated when they feel a sense of autonomy, competence, and relatedness. Autonomy means having the freedom to make choices, competence refers to feeling capable and effective, and relatedness involves feeling connected to others. When these needs are met, individuals are more likely to engage in activities willingly and enjoyably. SDT is often applied in various fields, including education, sports, and workplace settings. For example, in a classroom, teachers can enhance student motivation by providing choices in assignments and fostering a supportive environment. This approach not only boosts performance but also promotes a love for learning, making education more fulfilling for students.