Natural phenomena and scientific issues are intrinsically interdisciplinary. Students need to study a variety of academic disciplines in the natural sciences to explain a phenomenon or its related problems. Our goal in the current study was to examine the epistemological foundation of students' interdisciplinary understanding of carbon cycling…

This is a qualitative case study framed by a sociosemiotic theoretical framework to explore science and language instruction with three Emergent Bilinguals (EBs) in sixth grade. The study details the modeling and explanatory processes used by EBs to mediate science learning through evidence-based argumentation. A thematic analysis of students'…

This article is a qualitative study that explored bilingual/ESL science teachers' reflections about subject matter knowledge (SMK) and instructional practice in the elementary grades. Thirty-three teachers were part of a 5-year professional development program designed to enhance instructional quality and effectiveness to teach English learners.…

Attainment of five earth science concepts by high school seniors depended on the amount of previous science coursework by the students and on the size of their school's enrollment. Seniors in Texas high schools were subjects of the study. (Author/PP)

The purpose of this investigation was to compare the knowledge regarding marine organisms and their feeding relationships of fourth grade residents of one coastal and one inland community in south Texas and to generate grounded theory concerning the participants' construction of such knowledge. Four male and four female students were randomly…

This study explored the effect of experiential and experience-based approaches to learning and instruction on transitional first grade students' (a) acquisition and use of economic concepts and (b) economic reasoning ability as indicated by the presence or absence of misconceptions about economic concepts. A pretest-posttest control group design…