The papers, presented at the Sixth Curriculum Research Institute, represent an attempt to translate research findings in the behavioral sciences into educational practices with the hope of stimulating curriculum research and field study in school situations. Each of the papers included on this publication is directed toward examination of one of the three major forces that influence learning. This point of view recognizes that the physical organism, the society, and the psychological organization of a person are all determinants of learning. While the slow, orderly unfolding of the organism determines in large measure the timing of the learning tasks which an organism is capable of at any given moment, the social groups to which a person belongs and the accumulated meanings which together constitute a person's psychological organization are also major forces influencing the individual's learning and development. Each of the papers touches upon ways in which various factors influence the learning and motivation of students in the classroom; a teacher must be sensitive to these factors and make provision for them in designing appropriate learning experiences. References are included. (Author/SES)