Profiles of preschoolers' numerical abilities across quantity representations.

Children's early numerical abilities shape their trajectories for math learning throughout schooling, and task quantity representation (e.g., nonsymbolic vs.

A Kindergarten Number-Sense Intervention With Contrasting Practice Conditions for Low-Achieving Children.

The efficacy of a research-based number-sense intervention for low-achieving kinder-gartners was examined. Children ( = 126) were randomly assigned to 1 of 3 conditions: a number-sense intervention followed by a number-fact practice session, an identical number-sense intervention followed by a number-list practice session, or a business-as-usual control group. The interventions were delivered in a small-group setting over 24 half-hour lessons.