Students in classes using a self-instructional unit on meteorology and climatology which provided research data from which generalizations could be drawn increased their critical thinking skills more than groups using conventional earth science texts but did not differ significantly in performance on an achievement test. (AL)

This study was designed to identify those science concepts and mathematical skills that may be the source of student difficulty in learning chemistry as developed by the Chemical Education Materials Study (CHEMS). The instruments utilized were four Achievement Tests prepared by CHEMS. Each test item was analyzed to determine the concepts and/or…

Ninety students were randomly selected from students enrolled in a college general biology course and assigned randomly to two groups working in audio-tutorial laboratories. The "direct" group was taught by audio-taped lectures, laboratory exercises, and guide sheets that were primarily expository and descriptive; the…

The effects of certain teaching methods upon the development of critical thinking skills, an understanding of science and scientists, and knowledge of subject matter were investigated. An analysis of covariance and rank correlation between teacher behavior patterns and particular student outcomes on the "Watson-Glaser Critical Thinking…

There were no differences in critical thinking, understanding of science, or achievement outcomes between students using an ISCS type instructional unit and those given group instruction over the same content. (AL)

Compared, for selected outcomes, were integrated chemistry-physics courses with chemistry and physics courses taught separately. Three classes studying integrated Physical Science Study Committee (PSSC)-Chemical Bond Approach (CBA), and three classes studying integrated Physical Science Study Committee-Chemical Education Materials Study (CHEMS)…

The outcomes of 1333 students enrolled in Chemical Educational Materials Study (CHEMS), Chemical Bond Approach (CBA), and a traditional chemistry course were compared on the basis of grade and ability level. For the total group, students taking CHEMS and CBA performed significantly better on the American Chemical Society Cooperative Examination in…

Investigated was the effect of different types of laboratory reports on measured outcomes of the Chemical Education Materials Study (CHEMS) Chemistry. Compared were procedures using essay laboratory reports, mimeographed laboratory sheets prepared by the investigator and completed by the students, the laboratory manual for the course completed by…