This project studies the nature of discourse that relates to the teaching-learning of mathematics at the gymnasium. At a level where classroom instruction is geared largely to the needs of students taking the qualifying examination, the study aims at understanding day-to-day instruction from a sociocultural perspective. With the textbook and relevant graphical packages made available by the publisher in the digital format, the use of computers is found commonplace at this level. Free access to digital media that comes with the use of computers makes the environment in which mathematics is taught and learnt highly demanding and challenging for both students and their teacher. The discourse that transpires within the classroom is thus fraught with issues relating to what the learning of mathematics is about as well as educating the young in contemporary times.