It is wonderful that you can be there for her so much but I can't see any teacher I have ever met agreeing to that. I don't know your circumstances but might it not be better to keep her at home and homes hook her after your morning class? 27 kids and no aide sounds less than ideal though 30-35 kids with volunteer parent help was the norm when I was at school and it can be done, though an extra language must make it more complex.