When Stefan Merrill Block is about 12 years old, his paternal grandmother, Mimi, comes to visit his family in Texas. "The boy should be in school," the elderly Jewish woman tells his mother. "It's a Thursday! A boy on Thursday should be in a school learning a thing. He needs the—what do they call it? The curriculum." Stefan's mother, who made the decision to homeschool her younger son for five years starting in elementary school, tells Mimi, "Actually, the new theory in education is that what