An Arizonan model

AND what was the Minotaur? The ten-year-olds scribble their answer onto tiny whiteboards and hold them up for the teacher to see. Once each has got a nod, they repeat together: “half-man, half-bull.”

By the time these fifth-graders at the BASIS school in Scottsdale, Arizona, reach 8th grade they will have the option of taking Advanced Placement (AP) exams, standardised nationally to test high-school students at college level. By the 9th grade, they must do so. As a result, says Michael Block, the school’s co-founder, our students are “two years ahead of Arizona and California schools and one year ahead of the east coast.” ...