This paper examines the chronotopic nature of physics discourse and instructional practices that are mediated through the integration of disciplinary spatial repertoires and mathematical symbolic systems. The paper addresses how meanings are constructed during instruction between bilingual international teaching assistants (ITAs) and undergraduate…

Scientific reasoning competencies are relevant science competencies and therefore the development of assessment instruments for scientific reasoning competencies has become an integral part of science education research. However, some authors have questioned the validity of the instruments available so far, since their psychometric quality has not…

The objective of this ethnographic case study is to describe in detail one professor's translanguaging practices in an undergraduate science course at an officially bilingual university. The data-set is comprised of ethnographic field notes of 11 observed classes, audio recordings of those classes, an interview with the professor, and artifacts…

This case study examines how a lecturer and a group of students adjust to a request for English-only medium of instruction in tertiary education. The study draws on sociocultural theories considering context and language use as tools for meaning making. Goffman's theories of stage setting and footing are used to analyse how the lecturer positions…