Amazing!

My boys are always telling Caden that he is not very smart. Because he cannot do all the problems that they can, they think he is not smart. I always tell them that he is 2 grades lower than them, and that if he could do what they are doing, they would not be very smart. Well, they got their scores today from end of the year testing. Caden's teacher and I have not had the best relationship. We get along fine, and we are in CONSTANT contact, but I think she is WAY too hard on Caden. I don't say anything to him, and I support her, but it is obvious to Chet and I that she does not care much for Caden. He says ok things about her, never mean or hateful, but she isn't his favorite person either. And I'm ok with that. Every teacher will not like every kid, just like in real life. Every boss will not like you. You learn to deal. Well she is always on my case about EVERYTHING! I need to do math flashcards with Caden, I need to do his homework with him, I need to help him on his spelling, I need to read more, I need to fix his attitude... and on... and on.... and on! It's been difficult, and I've tried to not get defensive, I just vent to Chet with every new note that comes home about why I need to work with him more. He is VERY WELL liked by his classmates, he is smart, and according to the public library he is reading WAY above his level. According to her, he needs more work in every area, so much so, that he is taking extra reading classes before school. He got in the car Friday and announced his math score. The boys were instantly calling him a liar and saying that's not possible in the 1st grade. I was even a little skeptical. I told him to have his teacher write it down for me and send it home. He just brought it to me today. He scored higher than Cars. Carter and Carson were FREAKING out at his score. They were laughing and in complete amazement. Caden said the smartest girl in the class was 18 points behind him (His reading came in high, but not off the charts high). He is bored. He hates the books they read in class. He is way above average in everything tested. The morning reading class allowed them to play on IPADs as soon as they were done with their work. He was motivated. He finished in a breeze and onto the IPAD. I tell him that if he gets a 100% on spelling, he can go to DQ. He goes from 50% to 100% in one week. We have NEVER done flashcards. But he can do multiplication already because he listens to his brothers practice together. He is probably my smartest boy. He is so... free. Artist at heart, and bored to tears with school. What to do... what to do. I must keep him motivated, because he will move mountains if I do.