The Why Play? for First Nations Parents and Caregivers series suggest play activities for First Nations children in the following age group: babies (0 - 1 year), toddlers (1 - 2.5 years), and preschoolers (2.5 - 5 years). The series was developed in partnership with Families Canada and adapted in collaboration with the National Collaborating Centre for Indigenous Health. All partners are thankful for the valued contributions of the First Nations parents and family support practioners who reviewed the series.