Michael Paul Goldenberg, a frequent commenter here, has entered the blogosphere on his own by writing for the Chalkface, a site for lively and controversial opinion.
In his first entry, he questions the logic of introducing the Common Core to all grades simultaneously. Doing so, he cogently argues, defeats the purpose of assuring coherence and continuity across the nation.. The child in fifth grade will never be exposed to what was taught in fourth grade.
A sensible rollout would have started in first grade only, then added a grade a year.
But hubris knows no limits.