Eighty first-grade students, randomly selected from eight elementary schools, participated in this study. Four of the schools were located within the city and four in the rural area surrounding the city. The assessment instrument was the Organisms Evaluation Supplement, designed to evaluate students' attitudes in science, students' perception of…

One hundred eighty studies of science inservice projects reported in the literature from 1973-1980 were reviewed. Sixteen of these studies contained sufficient data for meta-analysis (technique by which treatment effects can be quantified, standardized, and compared using a "size effect" statistic). The magnitude of the effect of the…

In an effort to improve communication and interaction between students and instructors, improve the presentation of course material, and assess the cognitive development of students, a Quasi-Mastery Learning System (QMLS) of instruction was developed for a community college course in General Chemistry (GC). The QMLS incorporates eight features:…