Two Consecutive Days of 100% in Saxon Math

Elijah did it again for two consecutive days. He got an A in his Saxon Math. He works slow but sure. In his bad days, he gets up to 9 mistakes, a signal for me that he is stressed out with something.

After two weeks of seemingly inability to focus, I decided to keep him close to me, as in very close physically. I monitor him every 10 minutes, then gradually increase it to 20 minutes. In his reading, I let him read aloud.