smart stubborn defiant teens resisting homework

I have a couple teenagers that are resisting their education. How do I get compliance?There is a 16-year-old boy. He is quite capable, though he imagines himself to be well beyond that. He is kind of lazy, procrastinating and always doing the bare minimum to get whatever he feels is a good grade. He clearly has no respect for either parent. He is willing to damage his education in an attempt to control how our family does things; he wants to dictate parental choices.There is a 14-year-old girl. She is quite capable. She is a very different sort of lazy, probably influenced by perfectionism. She has a perfect GPA in her college classes and is in honors calculus. She resists signing up for a normal load of classes. She is willing to screw up her non-college class in solidarity with her brother. She has no respect for her dad, and might not respect her mom. Part of the trouble here is that her mom caved in during class registration for spring, letting her defy her dad by taking a very light load.Via dual enrollment, the two generally take 5 to 12 credits of college with older siblings. They also take homeschooled AP Chemistry with younger siblings. This semester that comes to 4 classes, which is a light load. It'll be just 3 for her in spring. The boy at least signed up properly, which is still a light load.The boy has decided that he has a veto over the education of younger siblings. He has decided that they won't be homeschooled because he has determined that we are incapable of teaching, which isn't true aside from his misbehavior. (older kids passed AP tests) He also seems to believe that he can force his parents to let him take chemistry as dual enrollment at the college. Even if I have him sit beside me with his chemistry book, he will do nothing but stare at the book. This is deliberate failure, intended to coerce his parents into doing what he wants. One doesn't learn without working through the problems, so he isn't learning. His sister generally does likewise. He may be pressuring her in some unknown way. She did do a few problems under heavy pressure from her mom when her brother wasn't present.The AP test date is May 7. That is out of our control. Without regular progress, passing the test will be hopeless.One of the awkward issues here is that backing down would grant the kids, especially the boy, control over parental decisions. This means that I can't really give up even if I'd prefer to do so. His misbehavior mustn't be rewarded. Another factor is that it is harmful for younger siblings to see these teens get away with disobedience and disrespect, causing the misbehavior to spread to additional kids.Taking a full schedule is very important for financial reasons. Dual enrollment and AP are nearly free compared to what college will cost later. Without that, college might not happen. For example, an older kid without the defiance is expected to transfer this fall to a 4-year school with 83 credits toward his degree. That is a huge amount of money saved.All of this trouble is of course a distraction from other parental duties. These two teens are selfishly consuming time needed for so many other things. There are other siblings that need attention, there are errands to run, there is income to be earned, and so on. via /r/Parenting https://ift.tt/33wPdSz