Son's apathy about school

My 12 year old son just does not seem to care about school. He routinely lies about having homework, often does not turn in the homework that he does (I can't tell you how often we have found it in his backpack that he takes to school), and waits until it is too late to fix things. I am sure part of this is normal lack of focus for a young boy. But nothing seems to spur him. He is very bright, but quite honestly lazy (not only in school, but most everything else). He tries to do less than the minimum, then works his way up from there. We have worked with him, tried to set up processes for him to remember to turn things in, encouraged his good behavior, punished him by taking away electronics, but nothing seems to work. The most recent event was learning that he will have failed band this last quarter because he did not do or turn in homework. We are at a loss on what we can do to get him motivated. Thoughts or suggestions on what has worked for others would be greatly appreciated.

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