This paper is primarily based on a research project on blended teaching and learning. This emerging teaching and learning mode is gaining popularity in tertiary institutions because the new technologies have integrated the classroom and online teaching and learning into a potentially productive environment. The research project adopts a discourse analysis approach and intends to investigate the discourse features of blended teaching and learning in the Hong Kong Institute of Education (HKIEd). The paper starts with the development of an analytical framework for classroom face-to-face (FTF) interaction and online computer-mediated communication (CMC), followed by discourse data analysis of a number of FTF and CMC teaching and learning sessions. The paper concludes by exploring the implications of the blended teaching and learning discourse analysis for the teachers and students in Hong Kong.[Copyright © 2009 Formatex.]