Describes five ways that high school students explain a chemical change. Discusses the differences in conceptual understanding of the students based upon their responses to questions about simple reactions. Presents additional classifications of conceptions of chemical reactions done by other researchers. (TW)

Describes a lexical training program developed to teach object, visible movement, and invisible movement words to children at stage 5 (N=7) and stage 6 (N=16) object permanence development. Stage 6 children learned all three types of words equally well, while stage 5 children learned object and visible movement but not invisible movement words.…

Relationship between the social world and individual knowledge acquisition is explored. A general theory predicated on the assumption that social interaction is the driving force behind knowledge acquisition is postulated and then formulated as a model. A selection of results pertaining to social learning are presented. (Author/MBR)

This article considers relatively neglected resources for the "bootstrapping" of cognitive growth, including chance plus selection, the affective boosting of relevant schemas, the operation of innate biases, and use of spare mental capacity. Implications for educational research are illustrated with reference to recent work on the…

Research has revealed distinct differences in the problem-solving approaches of high- and low-aptitude students. As a consequence, content area teachers can focus on thinking skills by having students describe their mental processes and giving them feedback on erroneous or incomplete reasoning. (TE)

The language of a literate classroom is profoundly impacted by that which is included, excluded, ignorantly condoned, and perpetually presented with distortions. The article analyzes seven comprehensive frameworks: (1) diverse voices; (2) identities of the language users; (3) present and absent curriculum; (4) cognitive structures influencing…

Uses interviews and a written questionnaire to probe students' ideas on the origin of earth and life on earth. A significant number of commonly held misconceptions were prevalent in the sample (N=493). Provides guidelines to assist learners in challenging existing views. Contains 64 references. (DDR)

Explores both the qualitative and quantitative dimensions of pupils' ideas related to conservation during state changes of water. Analysis of questionnaire data indicates that qualitative understanding precedes quantitative. Contains 18 references. (DDR)

Describes a study that explores the instructional influence of presenting pictures at the molecular level when introducing chemistry concepts and solving chemistry problems. Explores the effect of the pictures on students' conceptions and problem-solving abilities. Contains 59 references. (DDR)

Lends support to the idea that the quality of the cases used in problem-based learning affects the nature of student learning in this context. Outlines seven principles adapted from research on learning and cognition that can help guide case design. Contains 22 references. (DDR)

Two studies examined schematic information processing as a function of attractiveness stereotyping among 3- to 7- year-olds. Found that children made more errors identifying female characters with stereotype-inconsistent traits but either did just the opposite with male characters or had no difference in errors with male characters. Findings pose…

Recent contributions from theory, research, and practice in second-language instruction are discussed in relation to mathematics education. Three methods of teaching and learning second languages are described--"Delayed Oral Production," the "Silent Way," and the "Counseling Learning/Community Language Learning." (KR)

Discussed are preservice elementary teachers' misconceptions and inconsistent beliefs about multiplication and division with decimals. Sources of inconsistencies and recommendations for overcoming inconsistencies are included. (KR)

Discussed is the philosophy of the educational purpose of science education, the science involved, and the relationships of students and learning and students and content. A list of 14 references is included. (CW)

Used are test and interview data to extract evidence as to what level tenth graders have coordinated the worlds of arithmetic and algebra and can move freely between them. More dissociation is shown than was expected. (Author/MVL)