That about sums up a great "please 'em all, say nothing" answer.
1. Mitt is pushing a two parent houshold. Even if the parents aren't in the same house, two parents not arguing and putting the student in the middle would be nice for a change!
2. Great teachers: Because of the unions, it's impossible to weed out the lazy teachers. The kids are (and going back to the parents, the kids whose parents aren't involved in school at all are the kids that end up with these teachers)
3. Prental involvement: Kids cannot learn everything during school hours. The student that has the support of one or more parents in completing homework or projects furthers the chance of that student's better understanding of the subject matter.
I thought Mitt actually summed it up nicely in much fewer words than I could have. JMO