1. Classification, seriation, and the learning of electrostatics
2. “The Development and Testing of an Experimental Polysensory Self-Instructional System Designed to Help Students Acquire Basic Electrical Occupational Competencies”, Final Report No. 19. Washington State Coordinating Council for Occupational Education, June 1968.
3. Memory and Attention: An Introduction to Human Information Processing, New York: John Wiley and Sons, 1969.
4. “Analysis of Concept Formation as Observed with Students in Science Classes”, Final Report, Center for Research and Development in Individual Differences, Account Number 765, June 1966.
5. , and . An Integrated Experience Approach to Learning, Minneapolis: Burgess, 1964.