“Students in the nation’s virtual K-12 charter schools — who take all of their classes via computer from home — learn significantly less on average than students at traditional public schools, a new study has found. The online charter students lost an average of about 72 days of learning in reading and 180 days of learning in math during the course of a 180-day school year, the study found. In other words, when it comes to math, it’s as if the students did not attend school at all.” More …