The problem is that a higher teacher:student ratio may be necessary and younger students can't neccessarily travel as far. (Some parents don't have cars, sparse

The problem is that a higher teacher:student ratio may be necessary and younger students can't neccessarily travel as far. (Some parents don't have cars, sparsely populated areas, etc.) For cities I think this is a no-brainer however. Exploratory computer assisted learning like Khan Academy would be possible. It would also change teachers role from public speaker to guiding individual students who are struggling or are curious. We could easily have these two models function side by side depending on population density.