This report discusses various ways to measure educational disadvantage. The precise way in which educational disadvantage is measured also influences the type of targets set to address it. The National Anti-Poverty Strategy has set three key targets in the area of educational disadvantage: Educational disadvantage is a significant problem at all levels of the education system and is influenced by the characteristics of families, schools, neighbourhoods and by broader public policies. There is a substantial amount of activity which is endeavouring to address educational disadvantage in Ireland. However, relatively little is known about what works, and this suggests that projects with the potential to produce lessons about effectiveness would be particularly worth considering. Outlined are a selection of project ideas which address educational disadvantage from which lessons may be learned about effective ways of doing this work.