This study was designed to theoretically articulate and empirically assess the role of computer scaffolds. In this project, several examples of educational software were developed to scaffold the learning of students performing high level cognitive activities. The software used in this study, Artemis, focused on scaffolding the learning of…

This study aimed to assess grade 10 Turkish students' and science teachers' conceptions of nature of science (NOS) and whether these conceptions were related to selected variables. These variables included participants' gender, geographical region, and the socioeconomic status (SES) of their city and region; teacher disciplinary background, years…

The main objective of the study reported in this paper was to construct a Lakatosian teaching strategy that can facilitate conceptual change in students' understanding of chemical equilibrium. The strategy is based on the premise that cognitive conflicts must have been engendered by the students themselves in trying to cope with different problem…

Using a pictorial computer simulation of a natural phenomenon, children's exploration processes and their construction of conceptual models were examined. The selected natural phenomenon was the variations of sunlight and heat of the sun experienced on the earth in relation to the positions of the earth and sun in space, and the subjects were…

The development of cognitive representation is the main theme of three classic theories (Piaget, Bruner, Vygotsky) on how children learn concepts. Piaget considered structural change as a necessary condition for development; Bruner emphasized both internal and external function and the structural changes brought about by function; and Vygotsky…

This study investigated fourth graders' (N=18) self-generated analogies and the effects of their collaborative reasoning and arguing over these analogies on individual understanding of three scientific phenomena concerning air pressure. The data were subjected to both a qualitative and quantitative analysis. The first showed that the children, on…

The purpose of this paper is to investigate how explanation is interactively constituted in two mathematics instructional sequences during one year-long teaching experiment in a second grade classroom. The position taken is that classroom norms for what constitutes an acceptable explanation are a joint construction between teacher and students.…

This study sought to examine why peer interaction can facilitate learning, with the hypothesis that collaborative learning provides a social context that is conducive to the generating of explanations (an activity positively associated with learning). Individualistic and collaborative learning contexts were compared for 96 college students (19…

Schemas are cognitive structures or forms of thought, like pieces of ideas or concepts. Patterns in children's behavior, or in their drawings and paintings, indicate common themes or threads (schemas) running through them. The action research study described in this report examined the effects on children's learning of intervening in their…

Using the metaphoric story device of two tribes, one that builds their culture around words and the other which depends primarily on visual perception, this paper suggests a distinctive mental paradigm at work within the society of artists, who pursue visual literacy through graphic ideation. The author discusses his education in art and his…

Physics learning involves a change in the habitual perception of the everyday world. In order to describe the real world scientifically, an individual must develop perception and cognition capable of reconstructing the world from raw sensory data and incorporating acquired knowledge of the scientific community. The introductory physics student…

This paper reports on a study of seventh grade students (N=4) who attend a rural K-12 school. Students participated in a 5-week teaching experiment designed to build on their existing knowledge of the unit concept and extend it to the rational number operations of multiplication and division. Data collected comes in the form of videotapes,…

The intent of this paper is to open for consideration the relationship between metacognition and the promotion of conceptual change within the classroom. This goal is achieved through a brief description of present research by the authors, drawing from the existing literature a summary of what is meant by conceptual change learning, defining the…

The intent of this book is to encourage teachers to examine how they question in order to generate richer classroom interaction. Part One sets out the reasons for the limited effectiveness of questions in present classroom practice, and examines the two structures which form the matrix of all educational processes: the structure for thinking and…

This paper presents two examples in which technology, in this case a fairly sophisticated authoring system--ToolBook, was used as a tool to construct student understandings in mathematics. In doing so, students were able: (1) to successfully identify the variables (unknowns) and the information given (data) in the problem; and (2) to create…