That’s something my dyslexic daughter used to do. In the Barton Reading and Spelling program, the student is to “touch-and-say” each sound in a word. (It’s the same as sounding out, but they also put their finger under each letter, then slide thie finger from beginning to end of the word as they blend the sounds together.) So you could have her do that when she gets a word wrong.
Another helpful thing the Barton program does is has the student spell words in this systematic way: 1. Repeat the word you have given her.
2. Repeat the word again, this time super-slowly, using her hand/finger to show in the air the blending of sounds from beginning to end.
3. Spell the word on her fingers – one finger per sound. So, “jump” would be four fingers. “Sock” would be 3 fingers. (Use the hand that she doesn’t write with to do all hand motions.)
4. Then, write down the word.
It really seems to help my daughter concentrate on the sounds to go through all this (we’re actually beyond all this now, but if she’s slipping up, I go back to this procedure until she’s back in gear.)
I hope this gives you some ideas…….if you notice that your daughter keeps missing words, I would encourage you to check out Susan Barton’s websites.