Research on the development of ability to control variables during adolescence is reviewed. The first section discusses studies by Piaget and his collaborators, replications of Piaget's studies, and related studies by other investigators. Factors which influence performance on controlling variables tasks are delineated; the existence of Piaget's…

A developmental investigation of the ability to control variables was conducted. One or two logically similar physics problems were individually administered to 120 subjects age 12 to 14. The problems involved either familiar or unfamiliar variables. Each problem was presented in three different informational formats. Success on the problems in…

Describes the use of a microcomputer-based laboratory (MBL) in teaching the concepts of heat and temperature to eighth grade students. Discusses the advantages of being able to instantly display the results of their experimentation with the use of temperature and light probes, and heat pulsors. (TW)

Forty-five educators, mathematicians, scientists, cognitive scientists, and curriculum and technology experts met during January 16-19, 1986, in an attempt to synthesize the current state of knowledge about science education and to recommend actions designed to strengthen the field. This report describes the themes that emerged from the…

Reports on the results of a conference of leaders in science education research held at the University of California, Berkeley, January 16-20, 1986. Describes the themes that emerged from the disucssions and makes four recommendations intended to encourage the development of an integrated research base in science education. (TW)