There are lots of busses that run right along Cote de Liesse. From there it's about a two minute walk to any of the outfits along the south side of Dorval airport.
I haven't been in to check any of the places out, so I can't tell you specifics, but there is at least one school on that strip. You'll pay more than out at Cedars (or Les Cedres) but it is on the bus routes.