Charter schools are not the whole story. Schools must be free to contract with such providers for services. Schools must not harm their pupils . They must eschew classroom methods that have been proven not to work. They must not force children into programs that their parents do not want.
Every child has the right to be taught by teachers who know their subjects well.
It is educational malpractice that a third of high school math teachers and two-fifths of science teachers neither majored nor minored in these subjects while in college. A retired military officer may make a gem of a middle-school principal. Today, Albert Einstein would not be able to teach physics in America's public school classrooms. That is ridiculous. Alternative certification in all its variety should be welcomed, and for schools that are truly held accountable for results, certification should be abolished altogether.