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…

This study traces the development and testing of a particular modular curriculum design that was set up where curriculum planners produced one single-level course offering for both college biology majors and non-majors. In this design, major units of study are broken into units. In each there is a basic module completed by all students in which a…

Presents the procedures, results, and conclusions of a study to compare the effectiveness of the open-ended chemistry laboratory with the traditional laboratory. Different classes of high school students in a college-preparatory chemistry course were exposed to the two laboratory techniques. The achievement tests and the Watson-Glaser Critical…

REPORTED IS A STUDY WHICH (1) ANALYZED THE EFFECTIVENESS OF A TEACHING METHOD DEVELOPED TO IMPROVE THE STUDENT'S SCIENCE PROBLEM-SOLVING ABILITY, AND (2) INVESTIGATED THE RELATIONSHIP BETWEEN THE PROBLEM-SOLVING SKILLS MEASURED AND THE STUDENT'S SCIENCE BACKGROUND, CRITICAL THINKING ABILITY, AND GRADE POINT AVERAGE. CONCLUDED WAS (1) THAT 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…

Grade seven classes of high potential and average potential students were randomly assigned to control or experimental groups. After the experimental group had used a curriculum unit - "Ecology: The Web of Life" - which was designed to emphasize higher level cognitive abilities, the Watson Glaser Critical Thinking Appraisal was…

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…