This area is concerned with such problems as : How do children acquire skills When is learning more effective What are the factors that help the learning Process How do we measure the amount of learning Are there any economic methods of memorizing Why do we forget Can memory be improved Dose the study of Sanskrit helps than study of Hindi Psychology helps the teacher to get answers to these questions. It tells us that learning becomes more effective if factors like motivation and interest are taken into consideration by every teacher. The knowledge of psychology has helped the teacher in modifying her approach to the teaching learning process. The study of educational Psychology has brought about change in the approach and therefore we have child centred education. Psychological principles are used in formulation curriculum for different stage. Attempts are made to provide subjects and activities in the curriculum which are in conformity with the needs of the students, their developmental characteristics, learning patterns and also needs of the society.