I am in california

No where mentioned tuituion in my order. it didn't list what child expenses covers. I didn't know this at all.
He paid drawing classes before, but didn't pay anything since three years ago. I am filing the motion right now. Now he argued he didn't have to pay these classes and any school costs. Very shocking. He had a very expensive attorney. How did his attorney agree his declartion?

Any specific details you know about state california?