What I'd teach:
Basic biomechanics. Issues of safety, optimum leverages, muscle balance, and, most importantly, how to implement these things on major exercises.
Basic physiology. Obviously it's a beginning class, so I'd go with basic energy systems and muscular contraction.
Basic anatomy. All the muscles with focus on the major muscle groups; agonists, antagonists, synergists, and stabilizers.
Basic periodization. I'd emphasize the concepts of specific training for specific goals, not the many models available, although those should be mentioned as starting points.
Exercise form and function.
Real basic physics like power, force, etc., maybe in the biomechanics section.
Not sure what to do about nutrition, not sure what things are like up in Canada in that regard. I'd just cover basic ideas of energy expenditure with the energy systems section.
I have no idea how much time this would actually take to teach or how it would fit in a semester schedule. Just what I would have liked to have known that first year of training.