Describes the construction and use of a simplified apparatus for fermentation studies. (LS)

Describes the investigations of the decomposition of a diazonium salt by the action of light. (LS)

Seventy-six undergraduate students in an introductory science methods class for prospective teachers were randomly assigned to either a student directed or an instructor directed section. Using analysis of variance, it appeared that neither approach had an overall advantage in the attainment of course objectives, although interaction patterns…

Describes an experiment designed to develop an understanding of the basic acid neutralization reaction of sodium bicarbonate, calcium carbonate, and aluminum hydroxide gel. Presents a procedure for the determination of reaction rate for an antacid in vitro and provides sample data for this determination. (GS)

Describes the use of original research reports as a basis for classroom discussion. Concepts of the nature of evidence and inference can be treated in depth by means of classroom analysis of evidence. (Author/GS)

Summarizes the results of a 1969 experiment survey made for learning the impact of special publications and the trend of experimentation in colleges. Describes some new or modified apparatus that has appared since the 1956 survey. (GS)

The declining U.S. student interest in science and U.S. students' poorer performance on standardized tests as compared to their counterparts in other developed nations raise serious concerns over the future of the sciences in the United States. After reviewing the available data, the staff and board of Research Corporation set as one of its major…

Research in teacher education has shifted from an emphasis on teachers' behaviors to a focus on teachers' thinking. The purposes of this paper are to describe categories of beliefs held by preservice secondary science teachers, to describe how the preservice teachers planned lessons, and to discuss the influence of their beliefs on their planning.…

Researchers of problem solving in science often find themselves in the situation of studying complex problems within a scientific discipline while constrained by the necessity of studying simple, well-defined problems. They then often generalize the results to the more complex problem. In this paper, this process is explored as it applies to the…

Characteristics of successful and unsuccessful problem solvers in categorization tasks are examined in this study of undergraduate students. Findings are reviewed of the categorization and solution tasks undertaken by a group (N=21) of science majors at a private university. The subjects were classified as either successful or unsuccessful in…

A major goal of science education is to turn novices (students) into experts (scientists or science literates) with a minimum amount of pain, effort, and time. However, transfer of biology knowledge from instructor to student usually results in a loss of the rich interconnections that an expert has. The papers in this set describe efforts to…