“…This framework has shown its relevance to research at university level (for instance, Heyd-Metzuyanim et al, 2015;Ioannou, 2018;Nardi et al, 2014;Toscano et al, 2019) and has been used to compare students' and lecturers' engagement in discursive activities (Güçler, 2013;Stadler, 2011;Thoma & Nardi, 2016, 2018. There have also been several studies that focus on the practice of defining among undergraduate students (Fernández-León et al, 2019;Gavilán-Izquierdo et al, 2019;Sánchez & García, 2014). It is less common to study the differences between undergraduate students' discursive activity when defining and what their lectures expect to see in their students' responses.…”