Graduate students ordinarily teach two out of three terms in the academic year, with the third term being a scholarship term. If you take on a research assistant position, you may teach fewer terms in a year. Teaching assignments are determined by the needs of the program and by the terms of the CUPE Local 5524.01 Collective Agreement.
Note that not applying for an appointment (even if you have a guaranteed position), failing to respond to an appointment offer within the required timeline, or refusing a position will result in the loss of the teaching appointment and its associated funding. Carefully read any communications associated with your TA positions and reply promptly when required.
If you have any questions about how your teaching affects your graduate funding, contact the Graduate Coordinator.