My old school had us do a survey and it was all about how we enjoyed the classes and a few of us tried to ban together and get our pe teacher fired. I don't think it worked, though.
We do...We take hours and hours of classes each year and during the summer. We must take recertification courses, and we are formally evaluated on many different things 1-2 times per year. We are also informally evaluated weekly by administration. Trust me, teachers ARE required to be competent. In fact, they have added so much to teachers' plates, that many teachers end up leaving the profession due to the stress of trying to manage all of that.
Oh, and teachers who are not scoring well enough on these evaluations are put on improvement plans. Teachers on improvement plans who don't improve in a timely fashion are let go. They are also the first to be let go when there are mass cuts in teachers in a district.
You have good laws in your country. My aunt was teacher married to headmaster and both was enjoying the whole summer with me. No test, nothing, only the had the holiday one week shorter, because they needed to prepare lessons schedule and study plan.
We go back to work a week earlier, but there are so many course requirements that many teachers use summer hours for planning, prepping, and coursework. This is the United States. At least in my district, it is required.
...where kids don't bitch about their teachers on the internet in a lame attempt to excuse their own stupidity.