Single and multi-word unit vocabulary in university tutorials and laboratories: Evidence from corpora and textbooks Small-group academic interactions, such as tutorials and laboratory sessions, do not often feature in vocabulary or English for Academic Purposes (EAP) research. Yet across many disciplines in tertiary education, students are required to attend and participate in these speaking and listening events. EAP students need to be prepared for them, and their textbooks should help them prepare also. The present study included interview data from lecturers and students which identified specific issues with speaking in small groups in university; corpus-based analysis of tutorials and laboratory sessions which showed large amounts of high frequency vocabulary; and an EAP/ESP textbook analysis showed little focus on vocabulary in tutorials and nothing on laboratories. A total of 176 phrases were suggested in three textbooks as being useful for expressions for speaking in small groups. An analysis of these phrases in the corpus showed that three quarters of these phrases did not appear in the laboratory corpus and two thirds did not appear in the tutorial corpus. Finally, lexical patterns from the corpus were identified and categorised in the same way as existing lists of multiword units in spoken academic English. Implications for pedagogy and materials design are followed by suggestions for future research. 1.Introduction English for Academic Purposes (EAP) research has focused predominantly on writing for the university (Skyrme, 2010), with some attention in terms of academic speaking focused mostly on lectures (Feak, 2013), particularly with regard to discourse in lectures (Jordan, 1997) and student problems with understanding content in lectures (Basturkmen, 2016; Crawford Camiciottoli, 2010). Student presentations have been the focus of some research (e.g., Hincks, 2003), and are an area of concern for second language speakers of English (Kim, 2006). Lectures and student presentations are mostly one-way, in that one speaker tends to hold the floor. Basturkmen (2016) notes that there is limited research into academic speaking which involves interaction between speakers, such as between lecturers and students or students and students. This form of 'dialogic