With the PCs for Families project, we wish to determine whether, under the
best of circumstances, ubiquitous access to networked computing by both stu
dents and their families has measurable effect on long-term student achieve
ment. We are interested in how networked computing effects students' educat
ional achievements, the attitude and professional development of the teache
r and support instructor, and how families support their students and react
to the new technologies in their homes. In this article, we discuss the de
sign of the PCs for Families experiment, a longitudinal quantitative and et
hnographic study of networked computing in the fifth-grade classroom. We co
ver our experimental methodology and provide an overview of what we have le
arned.