The purpose of this study was to examine the ways in which teachers use language to promote vocabulary development (i.e., vocabulary talk moves) during science instruction in early-elementary classrooms. Twenty-four total science lessons were recorded by eight teachers, providing 894.27 min of observational data across three timepoints. Discourse…

The increased demand for bilingual education has resulted in a growing need for professionally and linguistically qualified teachers whose shortage is evident in most Slovak schools. As science subjects form a major part of bilingual school curricula, the aim of our research is to determine the current situation from the combined opinions of…

Language in chemistry is highly specialized, and for students, transitions in language complexity from high school to university can be extremely challenging. With an increasingly diverse cohort of students enrolled in UK chemistry degree programs, better understanding the linguistic challenges students face is becoming a greater pedagogical…

Just as language reflects one's thoughts, the text of science textbooks reflects the structure of scientific knowledge and thought. Therefore, students' learning of scientific language leads to their acquisition of the structure of scientific knowledge and thought. The purposes of this study were to extract scientific semantic network from science…

This study describes multilingual students' authentic use of their first and second languages in a "translanguaging science classroom," from a sociocultural perspective. The study is ethnographic, and has followed some lessons each month in a translanguaging science classroom at a primary school for three years. The observed lessons were…

The term "weight" has multiple related meanings in both scientific and everyday usage. Even among experts and in textbooks, weight is ambiguously defined as either the gravitational force on an object or operationally as the magnitude of the force an object exerts on a measuring scale. This poses both conceptual and language difficulties…

This article demonstrates one particular difficulty of interpreting students' use of language in science classrooms: determining whether a student's writing indicates a misconception or a misrepresentation. Students' written assignments from a case study are used to illustrate instances where multiple interpretations are possible. These examples…