This text is an article from the New York Times, published on February 15th 2001.
Judging from the photo, we can deduce that some students are having lunch at the school restaurant.
This text deals / the journalist tackles with the development of online courses (=on the internet) / virtual high school (=homeschooling).
Part 1 : Away from school (“at home”)
Part 2 : Emergence of online courses (“Florida online high school”)
Part 3 : Critical reactions (“alarm”, “worry”)
Part 4 : Doing better (“mark”, “improve”)