Analyzes difficulties of students experiencing their first contact with heuristic hypotheses. Attempts to interpret these difficulties and suggest remediations. Uses an example from the chemistry of aqueous solutions. (MKR)

This article discusses problem solving and how science educators can integrate problem solving into their instruction. The Search, Solve, Create, and Share (SSCS) model was developed based on the findings of problem solving research. (YP)

Explores the problem-solving behavior of a university lecturer as well as that of undergraduate and graduate students. Identifies and describes 14 physical and cognitive actions employed in the problem solving. Contains 28 references. (DDR)

Examines how problem solving in the domain of Mendelian genetics proceeds in situations where solvers' mental models are insufficient to solve problems at hand (model-revising problem solving). The study addressed the heuristics characteristic of successful model-revising problem solving and other aspects of student model use. (LZ)

Examines various types of problems that researchers have used to demonstrate problem solving. Focuses on genetics problems. Discusses classes of learning outcomes, conceptual knowledge gains, content-independent heuristics, content-specific procedures, understanding the nature of science and a typology of genetics problems. (CW)