The digest is a summary of the information presented in the monograph, "Students on the Move: Reaching and Teaching Highly Mobile Children and Youth". It describes the different reasons for high mobility and the characteristics of highly mobile families, explains the specific educational and social support needs of highly mobile students, and briefly reviews the findings on effective school programs and classroom practices. Highly mobile students include the children of migrant workers, of families experiencing domestic violence, of families in unstable work and home situations that result from high poverty, and of military and immigrant families. The academic consequences of high mobility are severe. High mobility hits urban children particularly hard. Inner city students are more likely to change schools frequently. Children of migrant workers cross school, district, and state lines. Subgroups within the migrant population include students with disabilities and older immigrant youth who enter school with little prior educational experience. To address school stability issues of homeless children, Congress passed the McKinney-Vento Homeless Education Assistance Act, which allows homeless students to remain in their original schools, even if they no longer live in the residency area, and schools must provide transportation. (Contains 20 references.) (SM)