I actually think you're wasting your time keeping your child in school. Please let your husband know about my experience.
I pulled my daughter out due to cluster migraines. She has gone a solid month without migraines, something that does NOT happen during the school year. She never suffered migraines in summer.
Anyway, I pulled her out during the Christmas break and I regret ever having put her in school. She started a strong reader for someone who had only completed kindergarden, and she seems to be gifted in math. I was horrified to see constant finger counting and she knew NO math facts off the top of her head. After schooling through January I can see real gains.
I feel the school excelled in teaching good writing skills. My daughter journaled in first grade and had some form of writing almost every day. But aside from that I can say that her year and a half in PS set her back and I'm basically taking the rest of this year to get her caught up. I'm confident she'll be ready for the third grade on time.
How is your sons spelling? While my daughter was READING well, there was no phonetic instruction so all I taught her was forgotten the year and a half she was in school. Although she's a very good reader I've back tracked and am doing the second year of our phonics program for her SPELLING ALONE. She thinks it's baby work but since she's already seeing spelling gains, she's agreeing that it's good for her.
The longer the time your son spends in school, the more time you're going to have to catch him up to where he needs to be. That's been my experience, and that's the common scenario with public school. My older two boys are in PS and I really regret it. My oldest is in 10th grade and he took the PSAT this year and scored in the 99% which is quite an accomplishment since most taking the PSAT are in 11th grade. His English teacher sought him out to see where he had gotten his English instruction because they knew it didn't come from the public school system. We used Rod & Staff exclusively from 3rd grade on.
I'm trying to figure out the math ideas myself right now. I'm not really crazy about Saxon and am thinking of supplementing with MUS or Singapore. I will DEFINITELY switch out of Saxon for Algebra. You can read my other posts to see why.
HTH
Denise