When he says the work is boring--does he mean too easy, he's done it before, all the teacher does is lecture with no hands on or other activities? How does he do on tests? Can he do fairly well on tests without doing the homework or does he fail the tests? Did this go on all year or just start? Is he in a middle school, junior high, or a k-8 scfhool? What do his teachers say? Has he ever had any testing done? What grade levels is he working on --with reading especially. Is this a new school? How does he handle change? Does he still hang around with the same friends as before or has this changed now that they are older? What grade was he in last year? Has anything in your family changed this last year?
Sorry for all the questions, but there are so many variables that could affect what is going on with him. Could you give more info? (FYI--I am a teacher and also have a ds13). Now to jump in without this info . . .
If he has had problems with schoolwork in other years I would talk seriously with this years teachers, if you haven't already, and get their take on it. Maybe as suggested he needs to be tested and get some tutoring.
Depending on grade level, if this is his first year of jr hi (or middle school), it could be the "freedom from having one teacher all day long, now I can do what I want, etc" phase that some go through. They don't have someone looking over their shoulder all day and getting on them about work not completed earlier in the day. They hear that these years don't count towards hs graduation credits and some royally blow them off! If that is the case, I would sit down with him and talk to him about what is going on and implement a behavior or schedule. He will not be happy at first--be prepared for this and do not give in!! Don't feel sorry for him when he smiles at you and does his best little boy, I love you mom routine! Kids are good manipulators. It could take several weeks--several long, hard weeks--to work, but that is why we are the parents. No one ever said it would be easy!
1) Behavior plan. Instead of taking things away, you might want to look at a plan where he "earns" privileges for completing things--his job (school), work at home, keeping room clean, attitude, etc. Then you are not punishing him, but he is learning that how he behaves and completes assigned tasks determines what he gets the privilege of doing. This can be a tough program to follow--you cannot give in, lots of empathetic smiles and saying in a clam voice "i'm so sorry you have chosen not to -----", but it can be very effective. You must be prepared that he might have to miss out on something fun with the family or friends. You don't argue with him. If he hasn't earned the right to do the fun thing, so be it. You can't give in--smile, tell him you love him and that you are so sorry he didn't earn ----.
2) Schedule. Some kids need more stucture and need to know what is going to happen when; perhaps he does. Develop a daily schedule for him as to what he needs to accomplish that day. Each day will probably be different if your house is like ours. Do a weekly plan. Set up times and activities/chores/schoolwork, etc to be done in that time frame. This can be pretty basic with get up, make bed, brush teeth to practice clarinet to weed the garden. To get to do something special, the activities assigned must be done. Build in free time, but it is only given if everything above it is accomplished. If the things are not accomplished, he must use free time to get them done. His free time is whatever time he then has left, it does not carry over! Make sure to not get too tight on the times, especially at first. Again, don't give in; smile and empathise, but remind him of the choices he made--"I'm so sorry it took you 25 minutes to make your bed. Now you don't have much free time before you leave for . . . "
Good luck. If you can answer some of the other questions, we may be able to help even a little more. Usually there is something going on--kids won't always tell, especially at this age--that causes the changes.
