Tacit knowledge, that is knowledge not expressible in words, may play a role in learning science, yet it is difficult to study directly. Intuition and insight, two processes that link the tacit and the explicit, are proposed as a route to investigating tacit knowledge. Intuitions are defined as tacit hunches or feelings that influence thought with…

This article offers five research criteria and their rationale to help researchers avoid problems and to help them improve research. Improving research should improve the quality of science teaching. The treatment of causal hypotheses is stressed. (Author/CW)

Reviews case against using traditional statistical methods in educational research. Examines "fantasies" entertained by researchers about the meaning of statistical significance. Recommends abandoning statistical significance testing and suggests other ways of evaluating research results. Advocates a return to the scientific method of examining…

A discussion of the research'' approach, which involves training teachers to solve classroom problems through scientific problem-solving methods - that is, through the formulation and testing of hypothesis about instructional problems. (Author/HB)