This resource kit was created for early learning practitioners and teachers to help support the development of numeracy skills of children in their care. The information presented in the kit is based on a comprehensive review of recent well-designed research studies on the learning and teaching of mathematics. The findings of these studies are communicated in an accessible format, making this resource an effective reference tool that can be used in daily practice. The kit is divided into two volumes: one for early learning and child care practitioners and the other for elementary school teachers. Each volume includes a research summary and several additional components.