This translational study will assess the feasibility, initial efficacy and cost-benefit of delivering a nutrition and physical activity module, named COPE (Childhood Obesity Prevention at homE) to an established Home Visitation Program (HVP)curriculum. Home visitation programs provide in-home services to low-income mothers and their children, and address multiple areas of mother and child health, but they have yet to be tested as an effective infrastructure for obesity prevention in early childhood. This 9-month pilot study will be conducted in partnership with an established HVP in Antelope Valley (CA), and will provide the feasibility data required to secure funding from NIH to test the long-term implementation of COPE on early childhood obesity prevention.