I am no expert, but have been dealing with the same thing with my son, 6 yrs old. He has been completely unable to concentrate on his homework (he says because it is boring & he already knows how to do it).

Last night, we tried something new & it worked great for him & me. He had spelling words, 11 words written 3 times each & a math paper. I had him do 3 words, 3 times each & then get up & go play for 5 minutes. Then, 3 more words, 3 times each & then 5 minutes of playtime, etc, until all work was finished.

Granted, it took 4 times longer to complete homework than it should, but it got done with no arguments & no complaining & we were both satisfied in the end.

He also likes me to set the timer on the table while he does his homework. He said that the ticking sound makes him remember that he needs to hurry & concentrate. He can set the timer for any amount of time he chooses. If it rings, he resets it and continues on. No consequences for being too slow.

2 things that work for my son & makes homework time more peaceful. I am hoping that soon he will be getting more challenging homework from the upper grades. Then we will see if he can stay focused when challenged.

Good luck to you!!