Much has been made of the "issue" of class size and composition. While I do believe there is validity in the concern over class composition (back in my school days, there was segregation for special needs kids and ESL was not a prevalent issue), I do not think that class size has ever been shown to have a correlation to student outcome, or at least there are enough contradicting studies to muddy that water. Most of my elementary school photos show about 35 of us and who knows how many were not in attendance on picture day. I happen to feel that I go a fine education under these circumstances, as did my classmates. Reductions in class size would appear to only make the workday easier for the individual teachers and fatten up membership in the collective of teachers known as the BCTF.
The third, seldom discussed variable on the quality of education in our classrooms is the actual quality of the educator. To my mind, this has a much greater effect on the educational outcomes of students than class size. Yet, it is rarely addressed. Those of you who have kids in the school system, quickly name one teacher who has been dismissed for poor performance. I can only cite instances where crappy teachers were shuffled off to the next school, none that were dismissed.
Now, what you may ask is the answer to this problem? Well, before answering that question, one must ask what is the core of the problem to start with. Basically, in order for an incompetent teacher to be fired, the school administration has to jump through a bunch of hoops, which is OK. But who are the school administrators? They are teachers. Therein lays the problem.
So back to the solution. I think that each school should have a principle who has an educational background just like there is now. However, the second in command (currently vice-principle in larger schools) should be totally removed from the teaching vocation. He or she should be hired to run the business side of the school, including making all hiring and firing decisions. Suddenly you will have someone in the school who is not afraid to take the hatchet to incompetency and who will not accept rejects from other schools. Let's say they fire the worst 20% of teachers in each school and are given a free hand to hire the best candidates for replacements. Wow, now you have the potential for better student outcomes that is staggering.