So this may or may not be relevant, but I'd be sure to look at this a bit sideways - are you sure this is all about the teacher, or is some of it potentially LDs not successfully accommodated?
He is taking 8 classes.I think I registered him for too many. When home he is pretty much studying all the time due to the amount of work and the fact that he takes longer to do things.
8 classes is a lot of classes, but he's only attending class 2 days per week. Have you asked how much time outside of the in-class days the teachers expect students to be studying? If he's spending a significantly longer amount of time per class at home, chances are either his dyslexia or ADHD are getting in the way of his ability to be successful in the class (he may be getting great grades, but look at the amount of time it's taking him to complete the work assigned). Is he using any accommodation such as text-to-voice, audio textbooks, limiting the amount of repeated work required etc? The one thing I see happen a lot with my 2e kids is that what looks like frustration with a class is sometimes frustration with dealing with their 2nd e, and when you resolve that issue the other issues with the class disappear.
He says that he knows the subject but his tests and homework do not reflect that.
I have two 2e kids with two very different personalities. one of my 2e kids tells me this all the time - she knows the subject. Sometimes she does, but has trouble showing her knowledge due to lack of appropriate accommodations. Other times, she just simply doesn't want to deal with the amount of work it would take (reading) to keep up... and she also doesn't want to admit that she has a tough time with reading. She can get by quite easily much of the time by bluffing, and as she's gotten older it's become a habit that's deeply ingrained... but around middle school time the work started catching up with her in a way that made bluffing much more difficult to pull off. There's also a chance that your ds has lower grades on assignments and tests than you'd expect if he's having trouble processing the instructions/etc when he reads them- my dd has had years of reading tutoring and was exited with flying colors, but when I spend time with her and specifically ask her to explain what she's read to me on things like simply one-line questions - she often reads too quickly and makes a guess as to the meaning rather than slowing down and carefully reading it, and you can easily see the impact on her schoolwork.
At this point my option is to remove him from this class or let him stay in the class.
If you haven't already talked to the teacher about accommodations, I'd start there.
Best wishes,
polarbear
