This is teacher metadiscursive awareness, not student. The teacher plans and reflects on a classroom discussion to ensure participation and to meet the goals of the discussion.
This short article from ThoughtCo provides a general definition and description of the term "metadiscourse."
A free book from the National Academies provides the research base for all science education, K-12. In particular, for this practice, teachers can focus on the initial chapters and Part Three: Realizing the Vision.
This 33-minute video focuses on a Penn State introductory sociology classroom conversation on code-switching, featuring students and the instructor discussing how and why people adapt their language, tone, and vocabulary depending on context, audience, and cultural expectations.
The purpose of this study is to analyze how science teachers use metadiscourse to construct scientific knowledge with their students.