This paper describes the mechanism of conceptual development by characterizing it as a cartooning process, which is a neurological mechanism which records a perceptual kind of sketch of the world in our brains. Its unique character, its biological basis, and its consequences for education are discussed. (Author/KC)

On the basis of a conservation of substance experiment with 189 blind and partially sighted children, it is inferred that while the best of them are performing on a par with the best of their sighted peers, the age range in which conservation is attained is more extended for the visually handicapped. (Author)

Based on an M.A. thesis (Mitler) submitted to the Department of Psychology, Michigan State University, and reported in part at the meetings of the Midwest Psychological Association (Chicago, May 3, 1968).

A study was designed to investigate the relationship between cognitive style and hypothesis testing strategies used in solving concept attainment problems. A field-independent (FI) and field-dependent (FD) cognitive style group of third grade students were administered concept attainment problems using a blank-trial methodology. The results…

This manual is designed to help Army training personnel select and implement a specific approach to achieving specific training goals. Following a general learning model, general training principles are summarized. The rest of the manual shows how specific learning principles are associated with groups of learner performances. Training goals…