Interventions are needed to teach fundamental motor skills (FMS) to preschoolers. There is a need to design more practical and effective interventions that can be successfully implemented by non-motor experts and fit within the existing gross motor opportunities such as outdoor free play at the preschool. The purpose of this study was to evaluate the feasibility and efficacy of a non-motor expert FMS intervention that was implemented during outdoor free play, Motor skills At Playtime (MAP). (author abstract)