Not being an American, I can't sign the petition. However, I'm glad there is one.
I've read other comments, including one by a teacher saying that tenure is very very important to protecting one's future, and I think there was a suggestion that Ms. Portilo would do well to receive training so that this doesn't happen again.
I've also read about how the Barton family, in general, is basically blacklisted by the school and the community.
If I were able to influence this case, I would require that ALL staff, and ALL PTA members, and any of the community who wish to be included, be required to take several courses about students with disabilities and compassion training, before tenure is permitted to be retained. I would also require that the Barton family be aided until they feel like they are useful members of the community again, with a role to serve, instead of the adversary. Until all sides are resolved - not perfectly, but adequately, as education is to be done - this is going to be something that crops up again and again.
I requested that my exams not be printed on yellow paper - it might be more of an issue of the lighting, but the black text seemed to disappear in places, on the bright yellow paper. No idea what happened, but it's something to watch for.