This was an experiment to test the extended discretion laboratory approach versus a guided-inquiry approach for teaching biology in a university setting. Among three criterion variables (examination, reports, and quizzes), only the laboratory report scores showed differences between groups and group-by-instructor interaction. (Author/YP)

Reported is a study of the relationships between the component skills involved in practical work assessment. Skills assessed included observing, manipulating, planning, interpreting, reporting, and self-reliance. The literature relating to inter-skill relationships is reviewed. (CW)

Some understanding of biology is needed for the success of individuals in modern societies. This monograph is a report of an assessment of educational achievement by a sample of secondary school biology students in the United States within the context of current knowledge of teaching and learning strategies, the role of biological literacy in…

The objective of this study was to investigate how classroom questioning and discussion skills, designed to increase scientific literacy and problem solving performance, affects student achievement in biology and chemistry. The two independent variables for this study were the effects of wait time and supportive intervention. The dependent…

Described are the camps, competitions, and tests of the U.S. National Chemistry Olympiad. International competition, local exams, participating high schools, and national exams are highlighted. A summary of test results from the 1988 national examinations are presented. (CW)