Peter Greene explains the mendacity by those who are advocating competency based education for teacher education, a ridiculous claim which pushes technology, and starts with the assertion that traditional teacher education is worthless (which explains why there are so many 'bad teachers'). "Teachers have to be educated by other teachers. That is why student teaching works-- daily constant supervision and feedback by a master teacher who knows what she's doing. That experience is best when it rests on a foundation of subject matter, child development, and pedagogical knowledge. It also works best when the student teacher is helped to find her own teacher voice; co-operating teachers who try to mold mini-me's are not helpful." A must read.