Satisfaction of Basic Psychological Needs and Teaching-Learning Process of Physics in Junior Secondary Classes in Jaffna District, Sri Lanka

This study investigates Relations of satisfaction of basic psychological needs and teaching-learning process and achievement of physics in junior secondary classes in Jaffna District Sri Lanka; find impact of basic psychological needs on teaching-learning process. The study was descriptive and a quantitative study of 89 science teachers to explore the relationship between teacher satisfaction of basic psychological needs and their teaching-learning process. The study also included 855 class-wise students to examine the relationship between students' satisfaction of basic psychological needs and their physics achievements. The results show that both relations ships are positively correlated, and teaching learning process can be predicted the level of 31% by the variation of teachers’ satisfaction of basic psychological needs. The findings suggest that applying SDT principles in the physics teaching-learning process can enhance teacher satisfaction to lead better classroom practice and student achievement, leading to better academic performance.