Recent research on achievement in science asserts that motivation, emotion, and metacognition are important driving forces for learning. This study sought to examine the relationships between two physics class emotions (hope and anxiety), their motivational predictors (instrumentality and self-efficacy), and their effects on metacognitive problem…

A model of expertise in chemistry problem solving was tested on undergraduate science majors enrolled in a chemistry course. The model was based on Anderson's "Adaptive Control of Thought-Rational" (ACT-R) theory. The model shows how conceptualization, self-efficacy, and strategy interact and contribute to the successful solution of quantitative,…

This study describes strategies fifth- and sixth-grade children used to solve the problem of determining how to control a "vehicle" they "drove" by pressing particular keys on a computer. The problem involves identifying or discovering a set of cause-effect relationships. (Author/JN)

Reviews an investigation of the effects of problem format and the number of independent variables on the responses of students to a control of variables reasoning task. Results indicate that adding independent variables to a control of variables reasoning problem leads to an overload of working memory which affects performance. (ML)

Explores teaching methods to improve students' understanding of quantitative chemistry and their ability to solve related problems using the Multidimensional Analysis System (MAS). Investigates the relationships between MAS-classified chemistry problems and student achievement in solving these problems. Shows that improvement in student…

Investigated methods science and nonscience majors use to make predictions about five situations involving the conservation of mechanical energy. Two findings, among others, show that subjects did not employ identifiable strategies in over 97 percent of the cases and show differences in the way majors and nonmajors worked the problems given.…

Presented is an analysis of think-aloud protocols of graduate students solving several different tasks in organic chemistry. The systems used by these subjects were classified. It was reported that the methodological system was most often used. (CW)

Identifies and describes the differences in the problem-solving methods used by faculty teaching introductory chemistry and students enrolled in an introductory chemistry course. Results indicate that students correctly solve algorithmic-mode problems more frequently. Contains 33 references. (DDR)

The use of the expert-novice technique in science education is examined critically. Discussed are four techniques including their methodological limitations. Improvements and alternatives in experimental design are suggested. (Author/CW)

Investigates the effect of increase of the M demand of chemistry problems, having the same logical structure, on performance of students having different functional M capacity, cognitive style, and formal operational reasoning patterns. (Author/YP)

Presents a study involving students (n=46) enrolled in an introductory physics course designed to describe and understand students' experimenting and problem-solving strategies in a constructivist learning environment. Concludes that students should be provided with problem-rich learning environments in which they learn to investigate phenomena of…

This study compares inservice (n=30) and preservice (n=30) earth and space science teachers on general mental abilities, content knowledge, Gagnean levels of content knowledge, and procedural knowledge in solving earth and space science problems. Results support Norman's theory of learning that inservice teachers function at the tuning mode of…

Focuses on the enhancement of chemistry students' skill in problem solving utilizing problem categorization techniques. Indicates that explicit training in categorization skills can lead to higher achievement in complex problem-solving situations but that such achievement may be limited by the lack of linkages between students' conceptual…

Determined was the effect that cooperative groups heterogeneously based on proportional reasoning ability have on problem solving in regular and honors high school chemistry. Characteristics of successful and unsuccessful problem solvers individually and in groups are discussed. (KR)

Reviews the neural modeling principles of learning, perception, cognition, and motor control, discusses their applications to sensory-motor problem solving, and explores possible relationships between that pattern of problem solving and aspects of higher order formal operational problem solving. Cites implications for science education. (ML)