Reported are results of a study designed to determine developmental patterns in proportional reasoning and to determine if these patterns are similar regardless of educational level and regardless of problem context. Data from 2282 subjects in grades 6-13 were collected using the Test of Logical Thinking (TOLT), and then examined for subjects who…

Twelve pupils from each of 13 middle school science classes participated in this study. Findings, among others, indicate that two of nine engagement measures (attending and generalizing), together with formal reasoning ability, were related to process skill, achievement, and retention. (JN)

This paper describes a study to determine whether students can, with appropriate instructional materials, develop and apply a knowledge of art concepts. An opening section reviews research on concept acquisition. This study utilized a concept acquisition model developed in 1970 by R. Gagne. Gagne's model proposed that concepts are learned through…