A first-grade student, who often struggled with classwork, had correctly figured out the animal described by a series of clues. But her teammates convinced her she was wrong, and she agreed to a different answer.Because of a new approach to assessing student performance, her teacher had observed the group and watched how the student had arrived at the correct answer.“I got to see a nugget that I would never have seen,” said Irene Diamond, a first-grade teacher at [...]