This research aims to determine the correlation between laterality with thick psychomotor development in children 3 years in educational institutions of the initial level N ° 288 and 231 of Atahualpa sector of the city of Rioja in 2013. The study is important because it reveals the presence of laterality, and how this is related to gross motor skills. The central aim of the research was to determine the relationship between laterality with thick psychomotor development in children 3 years in educational institutions of the Initial level N ° 288 and 231 of Atahualpa Sector city Rioja; and specific objectives were to identify laterality in children 3 years in educational institutions of the Initial level N ° 288 and 231 describe the bulk psychomotor development in children 3 years in educational institutions of the Initial level N ° 288 and 231, and to establish the relationship betwee...