Assessments of (n=16) year 9 and 10 advanced mathematics students while they solved mathematics problems indicated that the nature of the problem was a basic factor in determining the type of solution strategy used. Strategies were broadly classified into Ikonic or Concrete Symbolic categories. (31 references) (MKR)

Offers perspectives on mathematics education from an instructional design viewpoint through an overview of the conflicting ideological paradigms and three case studies illustrating those models. Presents a personal narrative of the importance of social and cultural realities as a professional engineer. (54 references) (MDH)

Presents results of a qualitative study of problem solving in the domain of instructional design. Novice and expert instructional designers worked on a "think aloud" design task, and their instruction protocols were analyzed for problem-solving processes. Analysis revealed that experts and novices used divergent design models and…

Discusses how one-on-one interaction between teacher-librarians and students can turn library research projects into positive experiences in which students use a process of constructing knowledge for themselves rather than reproducing knowledge they find in information sources. A model of thinking during information use is presented. (Author/LRW)

Describes the use of infometry, or informational geometry, to meet the challenges of information service businesses. Highlights include theoretical models for cognitive coordination and genetic programming; electronic information packaging; marketing electronic information products, including cost-benefit analyses; and recapitalization, including…

Proposes a cognitive approach to modeling users' perceptions in situations in which information content, information sources, and users themselves are constantly moving in time and space. A temporal-spatial model is explained and empirical support is provided by the results of a study of weather information users from a variety of occupations.…

Two hypotheses derived from the theory of action identification, which predicts that people are more likely to adopt a novel course of action if they concentrate on the "how" rather than the "why" aspects of their behavior, were tested with 95 undergraduate students. Hypotheses examined how the level of action identification…

Studied representation of text content and representation of the surface form of the text in two studies of native French speakers. Twenty-five subjects (aged 23-30) participated in Experiment 1, and 40 subjects (aged 23-30) participated in Experiment 2. Data confirm that readers retain the spatial location of words read. (Contains 18 references.)…

This paper focuses on the social constructivist perspective as a theoretical framework that can guide the design and evaluation of instructional research in literacy. Three assumptions are discussed: literacy knowledge is a cultural phenomenon; cognitive processes related to literacy are acquired in holistic, contextualized activity; and literacy…

This paper reviews the recent history of psychoeducational testing, examines attempts to link assessment with instruction within the information processing domain, and presents a model of a general assessment-instruction procedure that classroom and specialist teachers could use in effective remediation and instruction practices. (JDD)

Discusses the concept of writing as a mode of learning and critiques the write-to-learn model of writing theory. Reviews 35 research studies on the topic and concludes that they do not provide empirical proof of writing as a mode of learning. Describes other modes of learning that the model ignores. (HB)

Mental-rotation task response times from 12 studies involving 505 adults--251 males and 254 females--were used to evaluate 5 hypotheses concerning sex differences derived from an X-linked genetic model. The model assumes that task facilitation in speed of mental rotation is mediated by a recessive gene. Four hypotheses derived from the model were…

Examined relationship between anxiety and memory in 160 high- and low-trait-anxious sixth through eighth graders. Found that anxiety predicted memory bias toward negative relative to neutral information during conceptual but not perceptual tasks. Anxiety predicted memory bias toward positive relative to neutral information on procedural tasks and…

Used a variance-partitioning procedure to identify age-related and age-invariant components of verbal and spatial memory span in 6- to 12-year olds. Concluded that verbal and spatial short-term memory appear to rely on similar processes when serial recall is required and that development in span is closely tied to increases in processing speed.…

Describes the mental coding processes involved in the flow of information when the user is interacting with an enabling information-retrieval (IR) system, or a system designed to stimulate the user's grasping towards a higher understanding of the information need/problem/task that brought the user to the system. (Author/AEF)