Discussed are expert systems development and teaching, the representation and processing of knowledge, knowledge representation in chemical engineering, and expert systems in chemical engineering. The seven phases of expert system development are illustrated. (CW)

Cognitive, academic, and behavioral characteristics of 42 children with learning disabilities were assessed from identification at age 6-7 to the age of 11.5. At endpoint, resource students showed a drop in verbal intelligence quotient and lower achievement compared to mainstreamed students, though there were no differences at the time of…

Based on the premise that body experiences interfere inconveniently with scientific ideas in mechanics instruction. Suggests that learning processes start with body experiences and, with guidance, transform them into something scientific. Discusses this process for the static and kinetic aspects of force and for measurement. (MDH)

Raises questions regarding what students are perceiving when concrete models are used to represent abstract scientific concepts. Discussion of several exploratory investigations on the role of models in science teaching is presented in three areas: (1) interactions with students; (2) effectiveness of models; and (3) spatial ability and models.…

Differences in component processing skills of students of different ages and developmental changes over 1 year were studied for 96 students in grades 2 through 4 and 59 of them in a follow-up. Results trace the development of component processing skills and suggest a theory of the development of component skills. (SLD)

Compared cognitive functioning of infants--at 8 and 18 months--with varying levels of prenatal cocaine exposure. Found that, with risk and polydrug exposure controlled, exposure groups did not differ at 8 months on Bayley Scales or recovery to a novel stimulus. Infants with heavy exposure or high environmental risk declined in mental development…

Explores the intuitive understanding of biology that occurs in early childhood and discusses later cognitive changes that occur. Young children possess a vitalistic understanding (e.g. breathing brings power to the body) that becomes mechanistic (e.g. an understanding of the heart and lungs) as they mature. Includes statistical and tabular data.…

Uses case studies of students to outline the theories related to cognitive development and different ways of understanding what knowledge is. Organizes four sets of concepts: (1) the construct of intelligence; (2) different ways of knowing; (3) the nature of constructivism; and (4) the active, strategic process of learning. Contains 19 references.…

Looks at the concept of creativity, and provides an explanation of its development in humans using a socio-cognitive framework proposed by the psychologist Lev Vygotsky. Applies this theoretical framework to the development of, and attitude toward, creative thinking in the Chinese culture as contrasted with western cultures. (DSK)

Fourth-year university students (n=12) in a secondary-science-education degree program in Singapore were interviewed after demonstrations of five familiar chemical reactions. The majority of interviewees used perceptually-dominated rather than conceptually-dominated thinking and were unable to use scientific concepts consistently across the five…

Investigates relationships between drawing skills of children ages four to eight and their ability to identify materials. Regression of measures of aesthetic drawing, developmental drawing, design making, symbol creation, and developed schemata found a positive correlation between total drawing scores and material identification scores; age…

Discusses the effects of child abuse and neglect on young children. Focuses on possible neurological effects; psychological effects, such as disregulation of affect and avoidance of intimacy; and cognitive consequences throughout childhood and adolescence. Describes interventions that can promote resiliency in children, such as providing alternate…

Examines one aspect of the cognitive development of preservice education students, the ability to utilize different modes of mental representation. Finds associations between the level of mathematics experience and both the ability to utilize three different modes of mental representation (enactive, visual, and verbal) and the overall use of…

Reviews the behavioral, cognitive, and other psychological features of Prader-Willi Syndrome (PWS), exploring their relationships to known genetic mechanisms. PWS is a genetic developmental disability characterized by a group of specific behavioral features, including an insatiable appetite. The article briefly touches on PWS-related research at…

Describes the value of Piaget's equilibration theory for understanding characteristics of the young gifted child. Key elements of equilibration theory are discussed and differences in the equilibration patterns in gifted children are described. Suggestions are provided for teachers and parents who are helping gifted children search for…