Considered are two commonly used techniques, the interview and word association techniques. Highlighted is a third technique called the repertory grid. This third technique can be used to interpret students' knowledge based on an explicit, psychological theory of human behavior. (Author/CW)

Concepts used by two classes of grade eight students, one advanced and the other average, to explain the changes that occur when water is heated to boiling are presented. Little difference was found between groups in terms of the personal misconceptions used to explain boiling. The changes that take place in conceptual knowledge immediately after…

Combined free response questionnaire and interview procedure are used to probe students' ideas regarding how they believe they see both luminous and nonluminous objects and how they think they hear source of sound. From large sample of students studied (n=1901), prevalence of ideas in different age groups is compared, and progression can be seen.…

The problem-solving difficulties of Nigerian preservice chemistry teachers (n=300) were investigated. The results from written tests and an interview show students were capable of constructing mental representations but not solution plans; had inappropriate approaches and strategies; exhibited structural errors relating to a disregard of given…

An alternative procedure to the draw-a-scientist test (DAST) was used to uncover students ideas about science, scientists, and technology. A series of illustrations (based on the interview-about-instances (IAI) procedure) concerned with appearance, gender, work place, and employment were developed. Through interviews, students (n=121) responded to…

An intervention study with 12- to 13-year-old students which attempts to move students' thinking about matter and the dissolving process toward the school science view by use of activities and group discussion tasks which directly address some of the thinking underlying students' prior ideas is described. Students responses to the strategies…

Reported are compulsory education pupils' representations of electric current in a constructivist approach to introducing direct current (DC) circuits. Suggests that the pupils views can be modelled after an energy framework. Makes suggestions about the content, the apparatus and the experiments used in teaching DC circuits. (CW)

Described in this study are student teachers' frameworks of purity and the related concepts of the states of matter. The concept of natural versus pure substances, classifying states of matter, and implications for teaching drawn from the results are discussed. (Author/KR)

This study reports a new analysis of data on children's ideas about direct current (DC) electrical circuits. The analysis is theoretically informed by Piagetian stage theory of genetic epistemology. The limits of the genetic epistemology are discussed. (KR)