Since 1995, UNESCO and the Averroes Foundation have collaborated to develop early childhood education programs. This report describes Averroes intervention programs currently used in the Netherlands with young at-risk children. Following a Foreword which describes various UNESCO early childhood activities, the report is divided into six parts. Part 1 provides background on early intervention program development in the Netherlands. Part 2 describes how intermediary agencies can connect effectively with researchers, policymakers, practitioners, and families. Part 3 describes the Averroes programs: (1) "Instapje," to improve the quality of caregiver-child interactions; (2) "Klimrek," a home-visit program to stimulate verbal interaction between parents and children; (3) "Spel ann Huis," a home-based program to stimulate play development in 1- to 4-year-olds; (4) "Opstapje," to facilitate transitions from home to elementary school for disadvantaged 2- to 4-year-olds; (5) "Opstap Opnieuw," a home-based extra-curriculum for disadvantaged 4- to 6-year-old children and their parents; (6) "Overstap," focusing on collaboration between school, parents, and children during the process of learning to read; (7) "Stap door," a continuation of the Overstap program for second and fifth graders; (8) "Stap rond," a parent education program for caregivers of children from birth to 6 years of age; and (9) "Kaleidoscoop," the Dutch version of the American High/Scope program. Part 4 discusses the limited value in using educational models as the basis for program development and presents key principles for developing intervention programs. Part 5 concerns lessons Averroes has learned in disseminating programs to large numbers. Part 6 discusses the relationship between home-based and center-based intervention strategies. (KB)