Argumentation as a scientific practice has largely been examined along an epistemic and/or dialogic perspective in science education research. Both perspectives have sidelined the use of real material objects that are indispensable for scientists to construct arguments about the natural world. To address this gap, this article investigates how…

This paper illustrates the role of metalanguage in an explicit literacy instruction to talk about the forms and functions of scientific genres, particularly the genre of explanation. In the context of science, metalanguage refers to the technical terms for talking "about" scientific language using words like law, hypothesis, and…