[She took the notebook and took a look at it. Riye took out one of her pens and began making a few marks, with some notes on her own. Grading was something she did before, she graded a whole class of tests. ESSAY tests. She could do one guy's simple Kanji homework.

Since they started doing this, she was working small and going up to see where he skills were.

She was a fair teacher, if she saw someone make an effort she was anyway. So she figured looking at these little assignments with a critical eye was a good place to start.]

Well, I noticed here that your grammar here, and here, it's a bit off. There's a few spelling mistakes in a few places to but it looks like you're going somewhere. That matters.

So, best place is to tackle what went wrong and work our way up.