Presents a series of investigations focusing on the biodegradable packing materials ("peanuts"), which provide a method for exploring science through experimentation. These activities can help fourth through sixth graders sharpen their critical thinking and science process skills. (PR)

The classic film "Powers of Ten" is often employed to catalyze the building of more accurate conceptions of scale, yet its effectiveness is largely unknown. This study examines the impact of the film on students' concepts of size and scale. Twenty-two middle school students and six science teachers participated. Students completed pre- and…

Describes the effects of ability-paired student interactions on achievement as fifth graders (n=83) worked on laboratory activities relating to balance. Results revealed that low ability student achievement is greater, they speak more words, exhibit less distracting behavior, and move blocks on the lever less when they are paired with a partner of…

Observes 16 students from five elementary science classes to examine how students use tools when constructing new knowledge during science instruction, how control of tools is actualized from pedagogical perspectives, how language and tool accessibility intersect, how gender intersects with tool use, and how competition for resources impacts…

Examines how science teachers' (n=14) knowledge of science and science pedagogy changed after participation in a constructivist-based methods course. More-experienced teachers were paired with less-experienced teachers, and pre- and post-instructional concept maps, journals, portfolios, and transcripts revealed that, within the zone of proximal…

This study describes the effects of ability-paired student interactions on achievement as fifth graders (ten-year-olds) worked on laboratory activities relating to balance. Achievement gains were assessed (n=83) by analysis of pre/posttest differences on the Lever Concept Test. Audio recordings and field notes (n=30) were analyzed for the…

Examines the role that students' science concepts play in promoting teachers' professional growth. Journals and portfolios showed that students' science knowledge served as discrepant events that evoked teachers' dissatisfaction with their own content knowledge and motivated them to reconsider their pedagogical practices. (Author/CCM)

Thirty fifth-grade students participated in a study designed to describe the social interactions of ability-grouped dyads as they construct knowledge of balance concepts to elucidate the relationship between interactions and conceptual growth. Results revealed that high achieving students effectively used prior experiences and maintained focus on…

Investigates high-achieving fifth-grade students' achievement gains and conceptual reorganization on convection. Features an instructional sequence of three dyadic inquiry investigations related to convection currents as well as pre- and post-assessment consisting of a multiple-choice test, a card sorting task, construction of a concept map, and…

Examines the relationships and development of communities of concepts related to heat and convection among fifth grade students. Discusses the influence of familial and cultural experiences on conceptual development as well as the extent to which competing phenomena affect the development of new conceptual understandings. (Contains 49 references.)…

A study described the social interactions of ability-grouped dyads as they construct knowledge of the scientific concept of balance to elucidate the relationship between interactions and conceptual growth. The verbal and nonverbal behaviors of 30 fifth-grade students were recorded as they completed three activities related to balance and levers.…