Preschools and kindergartens long have taught children "task skills," such as cutting paper and coloring inside the lines. But new research suggests the spatial and fine-motor skills learned in kindergarten and preschool not only prepare students to write their mathematics homework neatly, but also prime them to learn math and abstract reasoning. "We think of early-childhood classrooms as being really high in executive-function demands, but what children are being asked to exercise [executive function] on end up being visual-motor and fine-motor tasks," said Claire E. Camer...