Reports on a study of children ages 10-11 years (N=6) exploring forces. Reveals a gap between the ways that measurement is used in mathematics and the ways it is used in science. Reviews the focus of the National Numeracy Project. (DDR)

Argues that the correct use of positive and negative signs in textbooks is often ignored and that this misuse might be because the authors are unaware of some basic rules. (DDR)

Reports on a case study in which students identify their diverse views on electric current and design a critical test to discriminate amongst those views. Employs a two-part model that differentiates charge from the agent causing it to move. Contains 43 references. (DDR)

Few college teachers understand the process learners go through during periods of insight, large or small. Many treat this transition from one paradigm of knowledge to another as purely cognitive when, in fact, it is also highly emotional. A model of the transition is presented and a reflective guide is offered to help teachers facilitate this…

Reports on a study that uses psychometric modeling to rank the appeal of a variety of children's astronomical ideas on a single uniform scale. Findings support the view that alternative conceptions may be markers of progress toward understanding. Contains 82 references. (DDR)

Maintains that certain concepts in mathematics are difficult to learn because of problematic continuity from prior knowledge to new concepts. Focuses on the problems of conceptual change connected with the learning of calculus and the shift from rational to real numbers. Summarizes the results of a study involving secondary students. (MJP)

Describes the learning-cycle inquiry model and applies it to a history lesson on the problems and conflicts leading to World War I. Describes how students tackle a teacher-created problematic situation by conceptualizing questions, constructing hypotheses, and reaching consensus on solutions; debate their proposed solutions with the class; and…

Describes an attempt to determine if there were gender or age differences in the images that 11- to 14-year-old students have of scientists. Results indicate that as female students get older they adopt and project a more stereotypic image of scientists, whereas male students seem to harbor a less stereotypic image of scientists as they age.…

Focuses on the responses of elementary school children (N=336) to an "Awareness of Technology Survey" question intended to explore how they would begin the technological problem-solving process. Contains 29 references. (DDR)

Presents the Conceptual Understanding Program (CUP) as a means of helping first-year university physics students overcome their misconceptions in mechanics. Students work on exercises alone, then in threes, and finally as a class, which has resulted in high levels of participation and satisfaction among students. This strategy can be implemented…

This article explains a movement-based approach to the development of language in children with deaf-blindness. This approach uses the salient features of individuals or objects to stimulate use of language in the immediate environment, and later to refer to persons or concepts in a more abstract fashion. It stresses the use of structure and a…

Studies the co-emergence of teaching and children's construction of specific conceptions that support the generation of improper fractions in a constructivist teaching experiment with two fourth-grade students posing and solving tasks in a computer microworld. Reports that examination of the teacher's adaptation of learning situations (tasks) and…

Presents evidence for students' qualitative and quantitative difficulties with apparently simple one-dimensional relative-motion problems, students' spontaneous visualization of relative-motion problems, the visualizations facilitating solution of these problems, and students' memories of the online computer simulation used as a framework for…

In science teaching, Aristotelian physics is often presented in a fragmentary and oversimplified way which distorts the true meaning of Aristotelian concepts. Discusses some mistakes that originate from a partial reading of Aristotle's work. Contains 32 references. (Author/WRM)

Discusses the various conflicting trends in mechanics education that have appeared over the past two decades, especially as related to conceptual change teaching and learning. Proposes the theory of schemata as a means to resolve the conflict that exists within the literature. Contains 82 references. (Author/WRM)