Notes that creating focus which leads to formulating a thesis is a task with which many writers have trouble. Describes a process model of conceptual development that helps students gain confidence in abstracting, conceptualizing, and formulating a thesis. (NH)

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)

Analyzes students' main difficulties in learning the concept of electric field. Briefly describes the main conceptual profiles within which electric interactions can be interpreted and concludes that most students have difficulty using the idea of electric field. Contains 28 references. (DDR)

Argues that the paradox of mathematical knowledge--that mathematics cannot be separated from empirical experience and yet cannot be explained by empiricist epistemology--can only be resolved if the causal interactions between knower and environment are accepted. Contains 26 references. (DDR)

Asks whether theories of knowledge representation provide a basis for the development of theories of knowledge structuring in instruction. Discusses codes of knowledge, surface versus deep structures, semantic networks, and multiple memory systems. Reviews research on teaching, external representation of cognitive structures, hierarchical…

Hypothesizes that the structure of a teacher's oral discourse is a factor that influences student learning. Sets out to establish the conceptual and discursive frameworks of three teachers. Contains 17 references. (DDR)

Provides a neurocomputational account of knowing and learning and grounds situational cognition theory in a neurocomputational model of neuronal activity. Presents the advantages of this theoretical approach. Contains 60 references. (DDR)

Presents characteristics of a learning environment drawn from a study of a grade five teacher. Analyzes the instructional activities presented to the students in order to explore the relationship between learning goals and conceptual change. Contains 25 references. (DDR)

Opens with the theoretical construct of figural concepts. Argues that geometrical figures are characterized by both conceptual and sensorial properties. Investigates the effects of interaction between conceptual and figural components. Contains 19 references. (DDR)

Suggests that misconceptions about natural selection arise from mistaken categorization. Proposes that students often fail to understand the ontological features of equilibrium processes. Contains 32 references. (DDR)

Argues for an expanded role for the concept of emergent levels in science education. Cites confusion of levels and slippage between levels as the source of many people's misunderstandings about patterns and phenomena. Contains 35 references. (DDR)

This study with 22 adults with mild to moderate mental retardation examined the nature of knowledge structures in this population as well as effects of presentation methods and response methods on ability to classify items. Results indicated major effects for disability severity, insignificant findings for presentation method, and a trend toward…

Investigates the concepts of ratio and proportion constructed by grade 9 students by investigating their proportional reasoning schemes and procedures on three types of tasks: missing value, numerical comparison, and qualitative reasoning. Indicates that students frequently used additive reasoning--that is, a comparison of two numbers by…

Reports on research into children's understanding of mountainous landscapes and mountain genesis as revealed in their drawing and modeling representations and in subsequent interviews. Compares younger and older children aged 7-11 from United Kingdom inner city schools. Concludes that the interpretation of children's pictures is problematic and…

Explores the use of a constructivist approach to enable students to examine what causes the seasons. Describes an activity based on a multiple choice question and includes a summary organized using a learning cycle. (DDR)