As online classes boom, questions of rigor arise
A fast-growing number of Minnesota K-12 students are migrating from the classroom to a home computer, in what some experts say is the vanguard of an online education revolution that's altering how and where many students learn. Enrollment in full- and part-time public online programs has nearly doubled in a two-year period -- going from 4,500 to 8,000 students last year, about 1 percent of the state's student body. Emily Johns and Sarah Lemagie, The Minnesota Star Tribune, Feb. 17, 2010