In Experiment 1, human participants were pre-exposed to two similar checkerboard grids (AX and X) in alternation, and to a third grid (BX) in a separate block of trials. In a subsequent test, the unique feature A was better detected than the feature B when they were presented in the same location during the pre-exposure and test phases. However,…

Reports the results of a study of 7- to 11-year-old boys (n=100) designed to explore the use of visual and auditory information in learning to spell. Results showed that only with 10- and 11-year-olds did visual information produce better results than auditory presentation alone. (JDH)

This booklet examines the educational value of jigsaw puzzles and gives practical suggestions on how to select and make them for use by children ages 1 through 8. It asserts that jigsaw puzzles provide children with the opportunity to develop problem-solving strategies, and discusses a theory of adult-child interaction that encourages the…