The old code permitted suspension for such an array of offenses that the punishment lost any real meaning, officials said. Principals were allowed to send students home for dress code violations, which is not permitted under the new rules.
That's the right and necessary approach for a public school, even Michelle Rhee seems to know it, but, by my reading, not the approach taken by the "no excuses" charters. So... what's the school reform lesson? I don't know.