This article offers a qualitative analysis of infrastructural in/justice in a community-partnered design intervention focused on developing high-tech low-cost Science, Technology, Engineering, Art, and Math (STEAM) projects. We examined the kinds of infrastructural injustices that were present in three afterschool programs and how it shaped STEAM…

Students' difficulties in interpreting what counts as knowledge have been addressed in past research on science education. The implementation of progressivist pedagogy in terms of more student-active classroom practice and the introduction of a variety of discourses into the science classroom deepens students' difficulties. The integration of…

This article evaluates a validity argument for the degree to which assessment tasks are able to provide evidence about knowledge that fuses information from a progression of core disciplinary ideas in ecology and a progression for the scientific practice of developing evidence-based explanations. The article describes the interpretive framework…

A 2x3x2 factorial design was used to study the effects of sex, verbalization of concepts by students, and information supplied by other students" or teachers" or performance in a multiple classification seriation task by fourth grade students. There was a significant interaction of sex and information source. (AL)

Identifies possible similarities in an array of 16 instructional models available to teachers and teacher educators and reveals three large categories of models. Analysis of factor scores on 33 instructional parameters suggests which characteristics educators attend to in perceiving models, e.g., affective orientations, application emphases,…

Constructed response and multiple choice modes of programed instruction were compared. Both formats enhanced classification performance; the effect was greatest when the criterion test was in the same mode as the instruction. (AL)

The purpose of this study was to investigate the differences among schools using student responses in the Trends in Mathematics and Science Study-1999 (TIMSS-99) data. Schools were classified into two groups based on eighth grade students' overall achievement in science. Two different discriminant function analyses were performed to distinguish…

Determined effectiveness of inquiry approach to science and language teaching to further develop classification and oral communication skills of bilingual Mexican American third grade students (N=64). Results indicate that participation in science inquiry lessons facilitated development of both classification and oral communication skills. (JN)

Determined (1) if ninth-grade students (N=221) receiving pictoral treatment with critical attributes highlighted performed better on an identification test than those receiving diagram form instruction, and (2) if high verbal learners receiving a largely diagrammatic treatment performed better on a classification test than high verbal students…