"GSRP-Formula" provides formula driven state aid funds to public school districts and public school academies only. "GSRP-Competitive" provides funding to private, non-profit agencies through a competitive application process. The purpose of the funding for both Formula and Competitive is to provide preschool programs for four-year-old children who may be "at risk" of school failure. Each child must have at least two of 25 identified risk factors and more than 50 percent of the children served must be low income. Both center-based and home-based models are available. All programs must provide strong family involvement and parent education components as well as preschool education.