Multilingual youth, from nondominant communities, are often denied critical opportunities for engagement in robust sensemaking due to deficit-based perspectives and linguistic hierarchies. To advance equity, it is important to recognize all youth as epistemic agents and facilitate opportunities to take on intellectual positions. Drawing on…

Recent reforms in K-12 science education call for curricular materials that are designed to be "coherent for students." This form of coherence arises when the classroom community sees their science work as addressing their questions and problems. In enactment, the teacher sometimes has to improvise from the planned trajectory of the…

Today, science is a major part of western culture. Discussions about the need for members of the public to access and understand scientific information are therefore well established, citing the importance of such information to responsible citizenship, democracy, socially accountable scientific research and public funding (National Research…

This study examines cognitive and social processes in group interactions that shape collaborative learning in science classrooms. Three small groups of students were observed while working collaboratively on explaining the burning of a candle under a jar. The learning environment served as a context for examination of conceptual convergence, a…

This study investigates the interaction between four pairs of high school students in a 7-week national research apprenticeship program. Each student was interviewed about perceptions of experiences working with a peer in the same setting, and the resulting stories were analyzed. Through discourse analysis of the interviews and interrelated…

Describes a method with data analyzed from two lessons on the quantitative assessment of content structure in classroom dialogue. Kinetic structure analysis was used and the fundamental coefficient of structure was calculated for each lesson. The method should provide new directions for looking at verbal interaction in classrooms. (PS)

Nine eighth grade classes were examined to identify the nature, distribution and patterning of verbal discourse. Included are a description of the categories used (Smith and Meux), a description of the nature of the verbal interaction in science lessons, and a resulting comparison between Australian, American, and New Zealand teachers. (DS)

The study sought to investigate the effects of available science materials, the physical plant, and the patterns of teacher behavior on the behaviors of fifth-grade students. Some significant treatment as well as aptitude-treatment effects were observed. (CP)

Fifteen Australian ninth-grade science classes used Australian Science Education Project (ASEP) curriculum materials with one of three levels of teacher structuring. Videotaped classes were analyzed for student and teacher behaviors. Concludes that more structuring results in more cognitive activity, more experimentation, and less task-irrelevant…

Describes a study using two types of macroanalytic analyses of observed teacher behaviors in the classroom. The findings of the study showed one of the macroanalytic techniques to be more effective as it identified broader behavior patterns occurring over longer periods of time. (MLH)

This study attempted to investigate relationships between pupil achievement and teacher verbal activity. Twelve teachers were recorded/observed teaching four lessons each to groups of 10 sixth-grade children. Results were not significant. (SL)

Compared with teachers of "conventional" science courses, teachers who attended a summer workshop and then taught Science Curriculum Improvement Study (SCIS) materials tended to increase the amount of indirect verbal influence used at the beginning of the school year, becoming more direct later, and asking more high-level questions (hypothesizing…

Activities in 31 Israeli high school biology and 4 college-level laboratories in first and second years of medical school were analyzed using the Classroom Observation Instruments. Percentages of time spent in pre-lab discussion (problem identification, instructions); lab-work (identifying investigation components, responding to students,…

Studied the relationship of teachers' I/D ratio to their students' achievement and retention of learning in senior high chemistry and junior high general science classes. Concluded that the student score on a standardized achievement test was dependent on the teacher I/D ratio as measured on Flanders scale. (CC)