Non-graded instruction allows each student to proceed as fast as he can in several subjects at the same time. One student may take several weeks to finish a unit in mathematics but only several days to complete a unit in social studies, while another student may experience exactly the opposite pattern. Non-graded instruction becomes even more flexible in a program of individualized instruction. An effective program of individualized instruction can represent the nth degree of non-graded instruction because it can abolish all grade level definitions of curriculum so that stu-