The document discusses the concepts of curriculum and hidden curriculum. It defines curriculum as a plan for bringing desirable changes in student behavior and a tool for teachers to mold students according to objectives. Hidden curriculum refers to the unwritten norms, values, and expectations that are unconsciously transmitted to students through various aspects of the school environment and teacher behaviors. Examples mentioned include gender roles, social class, and cultural expectations that influence the social relationships between teachers and students both consciously and unconsciously through the organization of classrooms and schools as well as varying teacher expectations.