Jesus would say "Let him who is without sin cast the first stone," and then he would turn to the woman and say "Go, and sin no more."
The hostility and name-calling toward the school officials that I have seen on this thread is really misplaced. The mother signed an agreement in order for her child to attend this school; she violated it. For the child to continue to attend the school, the mother needs to get in compliance with the agreement she signed or take the child somewhere else. The school has tried to accommodate her and help her, but instead she decides to take it to the courts and to the court of public opinion via a forum (Kalifornia TV media) that is openly hostile toward anything Christian anyway.
But....You left one thing out.
The Child.