What's the key to success of the Icahn charter schools?

The Icahn charter schools are among the best in the nation; with over 90% of their students in grades K-8 at grade level on standardized tests. What is the key to their success, according to principal Daniel Garcia in today’s NY Post?

Class sizes that are capped at 18 students and an enriched curriculum known as Core Knowledge.

Another very successful group of NYC charter schools run by the Harlem Children’s Zone has similarly small classes.

How simple, and yet so apparently elusive to the non-educators running our school system.

Because of Joel Klein’s obstinate (and illegal) resistance to reducing class size, the NYC students who attend our regular public schools are denied their chance to benefit from similarly favorable learning conditions.