In all my career as a geography teacher over many years, the teaching of mapping skills were paramount. Yet I never felt that how these skills were taught were as successful as they might have been. Many left school with poor graphic skills including mapping. For that reason your desire to examine the relationship between school mapping and its ability to enhance education is most commendable. There is, however, a further reason for researching this whole area - traditional maps and mapping skills have moved forward over the past 30 years in ways we could barely have imagined.. What with GIS, ARCVIEW, Landsat and so many computerised mapping techniques available, the world of mapping skills has changed enormously. Having said that there is still room for basics as for example ‘title, scale, key and north-point’, correct reading of coordinates, a real understanding what makes a ‘good’ map as opposed to a misleading one. I trust your research will do you justice.
I interpret the question to mean geographic location of schools vis-a-vis the quality of education moderated by socioeconomic variables including demography. If that is so you can look at my article on RG which is a book chapter entitled, "Geography is Destiny. ."