well, robinw, i'm afraid i have to agree with you there! in fact, i had actually typed somthing about "teacher behaviour" yesterday, and then deleted it as I wasn't convinced I had expressed myself clearly enough on such a sensitive issue.
As I mentioned I am addressing the issue at the moment in my department of kids just being chucked out. The solution I am trying to put across is deeply unpopular, but is simple: make the children WANT to stat in your classroom. From the moment they walk in the door make sure they are fully engaged and have something to do which is a challenge but thyshould be able to achieve at. Part of the arguments I hear against this is "but they shouldn't expect learning to be fun, they should be able to get on with it." Absolutely - I am not saying make it fun, I am saying make it engaging. Most children want to learn and we are not giving them the opportunity throughout the lesson.
Example: a student turns up 3 minutes late. The teacher stands at the door shouting at them for being late, they come in in a bad mood and so end up being sent out 5 minutes later. OR the latecomer is greeted at the door with "I'm glad you're here, there's some work on the board and I reckon you could finish it before the rest! When you're settled down I'll come and talk to you about why you're late." Hense lateness dealt with, but the student knows exactly why they're in the room. I see the first example again and again in my department, and surprise surprise the student comes later and later in the future!
I'm not convinced about zero tolerance. Someone mentioned it earlier and started saying except for ... and that is the problem. Take this recent example. A student teacher recently arrived in my department very keen on zero tolerance, the students will do as expected type response. In one lesson a girl who has attendance problems got out of her seat during independent working time at the beginning of the lesson and walked to the bin. Teacher said "sit down immediately." The situation immediately escalated, the student refused to work and spread bad feelings throughout the group until she eventually had to be removed from the room by a senior teacher. The real story was, this girl had seen the work on the board, thought "I reckon I can do that, that looks interesting" in her excitement she had rushed to the bin with her pencil and sharpener so that she would be able to do the work. I said to the student what about saying "ah, I can see that you are keen to do the work, but you know you should really ask before getting out of your seat, carry on now, just remember to ask in the future." I can guarantee that any genuine student would now apologise! When I put this to the student teacher she said "no, you have to make the point consistently."
Sorry this is so long, but it is a very complex issue, because teaching is a very complex role. There is a balance between zero tolerance and pc tolerance. My department are just too knackered by dealing with large classes of difficult students to use the 4 hours a week of planning and marking time they are given to prepare the type of lesson these classes need. Plus, as I mentioned earlier, most of these 4 hours will be taken up with following up behavioural difficulties and supporting colleagues with theirs.
I think the answer is smaller classes and lighter timetables for teachers. We are all trying desperately hard but we know that we are not achieving. This isn't meant to be excuses or a moan. Teachers are often wrong. But we know what the right thing is and we really want to do it. We just need the time.