Our research on learning enhancement has been focusing on the consequences for learning and forgetting of some of the more obvious and concrete choices that arise in instruction, including: How does spacing of practice affect retention of information over significant retention intervals (up to two years)? Do spacing effects generalize beyond…

Discussion of memory for text information focuses on an earlier study which appeared to show that it is better for students to study a summary of a textbook chapter than to study the chapter itself. Topics discussed include recognition memory, recall, how to test memory, and psychological research. (10 references) (LRW)

A presentation of arguments demonstrating piaget's sensorimotor stages in Hebb's terms, and the suggestion for performing a computer test. This paper is an early progress report of an attempt to translate some plausible arguments into a rigorous demonstration. (Author)