Investigated the upper limits of (n=22) seventh-grade students' informal processes in solving first degree equations in one unknown prior to instruction. Results indicated the existence of a cognitive gap between arithmetic and algebra characterized as the students' inability to operate spontaneously with or on the unknown. (37 references)…

To illustrate the joint intervention of sociocognitive conflict and social marking in cognitive processes, 160 children (87 males and 73 females) in Geneva (Switzerland), with an average age of 6.5 years completed conservation of number and conservation of liquids tasks. Conflict and social marking are important in the acquisition of operational…

Discussed is the research project that used small-group problem solving as a primary instructional strategy of second grade mathematics for an entire year. The mutual construction of classroom norms for cooperative learning style is illustrated and examples of resulting learning opportunities are given. (MDH)

This paper argues for the integration of traditional concepts of developmental domains to provide more unified early intervention programing for young children with disabilities and their families. Research is reviewed which supports an integrated approach to child development. (DB)

This paper argues that cognitive referencing (which compares skills to cognitive level rather than to chronological age standards), used to determine children's eligibility for special language and motor services, is not consistent with current theoretical formulations. It also lacks empirical evidence for validity and results in exclusion of…

Describes three components of a seminar in mathematical problem solving for preservice mathematics teachers: (1) a cognitive component that accents particular phases of problem solving; (2) an affective component that allows for observation of skillful problem solvers; and (3) an investigative component that provides for independent study and…

Compares the operational and sociomoral reasoning maturity of 70 deaf children with that of a sensory unimpaired control sample. Tests subjects individually on three Piagetian tasks, story pairs, and the concept of justice. Finds slower development of operational reasoning in the deaf children but comparable development in sociomoral reasoning.…

Asserts that literature extension activities are an important part of any literature-based reading program for young children. Describes exercises based on the children's book "The Wolf's Chicken Stew" that enhance vocabulary, build higher-order thinking skills, improve comprehension, and develop writing and mathematical skills. (PRA)

A total of 86 girls of 2 to 6 years completed Level 1 spatial and affective perspective-taking tasks. Results showed increasingly accurate performance with age. Task intercorrelations and factor analyses provided support for the coherence of the Level 1 perspective-taking construct. (Author/BB)

The relationship between mental models used in problem solving and strategies children use when problem solving with manipulative materials are discussed. Teaching strategies for bridging the gap between the two are suggested. (CW)

Compared is an inquiry-oriented Biological Sciences Curriculum Study (BSCS) style laboratory approach with a more directive traditional approach on student outcomes in the cognitive and affective domains of learning. Differences in science achievement, reasoning ability, attitude, and stages of development are discussed. (KR)

Thirty-four children (ages 5-16) born to alcoholic mothers were assessed on measures of intelligence, reading, receptive vocabulary, memory for sentences, visual memory, and visual-motor integration. The children were found to be least deficient on intellectual measures and most deficient on memory for sentences and silent and oral readings.…

The postgraduate Teacher Thinking Seminar (TTS) was created to explore the implications of constructivist theory for teachers' education and development. Using participants' own practical knowledge, the main strategy was the dialectical process of group reflection. The article elaborates four seminar examples, suggesting that TTS can effectively…

This research assessed Australian high school students' understanding of light, developed materials to conceptual change with respect to the concept, and evaluated the effectiveness of teaching strategies utilizing the materials. After instruction, students were able to construct significantly more scientifically acceptable answers. An appendix…

Reports on a study of learning achievement in economics among five groups of third-grade students using the videotape instructional program, "Econ and Me." Finds that, although students achieved some level of content mastery, the overall results were not as dramatic as had been expected. Calls for further research into transfer of…