She is required to have 80 credits her freshman year. Study hall would be 5 credits as is photo or earth systems. She can't take more than one study hall per semester and they don't allow part-time students as far as I know.
I can't help but ask "why?" If she is already a year younger, why can't they give her more time? It seems so silly. I'm sorry to hear that she will have to give up something that she loves to meet their straightjacket requirements.
Also, have you checked with CSU to see if they have any flexibility re the age requirements? I know people who have high school age students taking classes at Mines and that there is a program for coursework through CU as well, though I don't know the details re tuition.
If it doesn't work out in the long run. There is a state charter, online high school that is free to CO residents
http://co.provostacademy.com/Good luck
