Extends P. E. Jonson's studies of physics learning by analyzing, on the basis of a 12-student control group, 24 high-school students' word associations, aptitude scores, and achievement results during instruction. Indicated a positive relationship between problem-solving ability and meaningful concept formation. (CC)

Examines conditions for the acquisition of the proportionality concept and attempts to improve the ability of remedial college students in an urban university to solve proportions. Specifically, the study was designed: (1) to observe the acquisition of the proportionality concept through training on the operations of group-structured tasks, and…

Investigated is the extent to which students' nonscientific beliefs change by comparing before and after instruction as a function of students' reasoning skill. Nonscientific beliefs discussed include special creation, orthogenesis, the soul, nonreductionism, vitalism, teleology, and nonemergentism. (KR)