Need your opinions

So I’m current teaching elementary and getting paid 43,000 this year bc I don’t have my teaching license yet(I’m working on it) but I have my bachelors and teaching experience. We started signing contracts this week and one of my coworker just signed hers she got 41,000 but her position is Teacher assistant she has an associates and I’m happy for her but also flabbergasted that they would offer her that when she doesn’t have the same responsibilities as a teacher. I think they will definitely bump my salary however so you think if I ask for 48,000 is too much or should I ask for more ? I’m also going to school.