Hypothesizes that the human brain localizes mental operations which are integrated in the performance of cognitive tasks such as reading. Provides support of this hypothesis from studies in neural imaging, mental imagery, timing, and memory. (RT)

Provides information on (1) a general indication of change in the cognitive structure of students associated with chemical comprehension; (2) the comparison of clusters of concepts; and (3) a graphical representation of the links among concepts. Argues that constrained word associations serve as a useful tool for mapping aspects of cognitive…

Described is the process approach to mathematics which is gaining momentum in primary schools. Included is a discussion of the origin and features of the movement and possible future directions and consequences of its growth. (PK)

Models the ideas of children's misconceptions and subsequent acceptance of conventional scientific thought on the simple cusp of catastrophe theory. Demonstrates one theory of the forces which are necessary to change a misconception to a scientific concept. (CW)

Examines research conducted at the British Open University using the research paradigm of phenomenography to discover what students understand about particular concepts in social science. The use of student interviews for formative and summative evaluation is described, and changes in course materials based on the results are discussed.…

Describes a classroom experiment designed to teach students the fundamentals underlying the normal coordinate analysis procedure of a polyatomic molecule. Uses a reverse procedure from traditional experiments of this type by providing the values for the force field and working backwards. (TW)

Reports on a study designed to determine the importance of images to experienced chemists and the nature of images among learners, with particular attention to correlations with level of learning. Suggests that instructional methods should consider the student's ability to develop specific images appropriate to the chemical concepts. (TW)

Describes a multiple-choice instrument that reliably and validly diagnoses secondary students' understanding of photosynthesis and respiration in plants. Highlights the consistency of students' misconceptions across secondary levels and indicates a high percentage of students have misconceptions regarding plant physiology. (CW)

Two major ways to view the numbers to 100 are counting by ones and grouping by tens and ones. Research suggests that early understanding of numbers comes from counting and that place value instruction cannot be hurried. (PK)

Analyzes the nature of the concepts shared and the manner in which they develop within the shared reading of five parent-child dyads. (FL)

Describes an activity in which young children explore the concepts of light by predicting the shape of shadows. Different configurations of light sources are used and objects are held in different positions. Sample questions to be asked of the children before, during, and after the activities are included. (TW)

Observation of mothers and their two-year-olds (N=10) in routine, free play, and novel discourse settings suggested that object labelling was more varied in natural than in experimental settings. Basic level tokens were less prevalent and subordinate level term usage was more common in the routine and novel contexts. (Author/CB)

Two experiments examine use of defining, characteristic, category, and identical semantic features of word concept information in cued recall. College adults and 7- to 11-year-old children were shown word triplets in which context words were related or unrelated to final target word. Results suggest meaning features differ in providing medium for…

The purposes, materials, and roles of teachers and students in developmental and practice lessons are contrasted. Two lessons designed to help students acquire understanding of geometric figures and of place value and two games for each are included. (MNS)

Examines how an economic concept changed when 68 third-grade Italian children underwent different kinds of experiences simulated by means of tutorial and critical training. (HOD)