Problem-solving activities have been studied from a diversity of epistemological perspectives. In problem-solving activities, the initial tensions of a problematic situation led to a cognitive dissonance between conflicting motives and instruments to reach the activity goal. We analyze problem-solving in the continuation of Sannino and Laitinen's…

Previous research indicates that sensori-motor experience with physical systems can have a positive effect on learning. However, it is not clear whether this effect is caused by mere bodily engagement or the intrinsically meaningful information that such interaction affords in performing the learning task. We investigated (N = 74), through the use…

Studied development of procedural knowledge in 14 adults, aged 18 to 35 years, engaged in a novel task using a toy tractor-trailer rig. Results revealed three phases of development in subjects' knowledge of steering procedures and the rig's movement patterns, and their use of feedback information. Subjects also manifested different levels of…

This paper provides experimental demonstration of remindings during learning and examines their effect on performance, as well as effects of practice and difficulty. Three experiments examining the occurrence, effects, and conditions of remindings are presented, and the implications for theories of cognitive skill learning are discussed.…

Investigated effects of two kinds of imagery on age differences in the ability to solve series problems. Overall, older adults (N=47) obtained lower scores than younger adults (N=41). However, results suggest older adults can use imagery as a control process, but are less likely to use imagery in abstract situations. (Author/JAC)

Two experiments, with 300 adult women as subjects, studied the effects of laboratory training on the use of the Conjunction Rule, a principle of probability that is often violated. Learning alternative strategies enabled trained subjects to use extensional reasoning rather than intensional heuristics. (SLD)

This research addresses the actual goals and intentions from which students plan and organize their work in a course of study. Representations can either facilitate or hinder learning and problem solutions. Several salient aspects of adult students' representational systems and how they influenced university study were examined in two studies. The…

Demonstrated is a covariance principle that causes the observer to assume that if one aspect of a two-dimensional figure (its perimeter or its area) is conserved, the other aspect must also be conserved (pseudo-conservation). Mentally retarded individuals, assuming no such fixed relationship, correctly judged the changed state of the nonconserved…

Two hypotheses, the cognitive capacity hypothesis and the selective attention hypothesis, try to account for the facilitation effects of prior knowledge activation. They appear to be mutually exclusive since they predict different recall patterns as a result of prior knowledge activation. This study was designed to determine whether the two…

The content of textbooks teaching the use of a computer was studied. An important component of skill learning, choosing the right procedure at the right time, is difficult in computer education because the connection between real-world goals and the generic procedures described in a manual is often obscure. Furthermore, it is difficult to tell…

Do children and adults who are novices in their use of microcomputers differ in their approaches when learning a computer language? Ten fourth- and fifth-grade students and 10 graduate students were observed learning the language BASIC on microcomputers. All sessions were tape recorded and verbalizations subsequently coded. Verbalizations, the…

This research attempts to diagnose the skills required for successful spatial performance in order to provide a theoretical foundation for military training in such tasks as map reading, surveying, and navigation. It is known that successful performance on spatial tasks depends on task requirements (e.g., requisite knowledge, alternative paths to…

A study examined the strategies and processes used by a sample of 33 Argentinean adults with little school experience to solve problems and acquire knowledge at work. A Piagetian methodological approach was used to observe adults in building, rural, and domestic work settings and to analyze empirical data regarding their behavior in task-oriented…

This collection of abstracts is part of a continuing series providing information on recent doctoral dissertations. The 20 titles deal with a variety of topics, including the following: use of word information cues by beginning readers; the relationship between problem solving and oral reading strategies; the ease with which children learn…

This document contains the second volume of the proceedings of the 28th annual conference of the International Group for the Psychology of Mathematics Education. Conference presentations are centered around the theme "Inclusion and Diversity". This volume features 65 research report papers: (1) Constructing Meanings and Utilities within Algebraic…