- The first track is the high school degree that includes 13 years of school and afterwards allows people to attend university. Generally the students with the best grades attend this track. Everybody learns English as a first foreign language starting grade 3 nowadays in all tracks, but starting grade 7 students in this track have to pick either French or Latin as their second (and then in 9th grade have the choice to pick the other one as a third language). Further, math and science education are much faster and better compared to the other tracks. - The middle track starts learning French as a second foreign language in grade 9 and the whole track only includes 10 years. It is geared towards people that will do an apprenticeship afterwards, for example in business or some other non-university subjects. - The third track is the lowest track for the worst performing students and does not include any second foreign languages. It's only 9 years of school and these are the people that often go into trades jobs like car mechanics, contractors, etc.
Personally I think this is a great systems. Students that can learn more and faster get to learn with students similar to them and are not slowed down by students that can't keep up. Students in the other tracks afterwards can continue on to eventually get the higher degrees through various different ways if they want and are able to.