When Bruce Woodfin begins teaching economics each afternoon at Spartanburg High School, 13 pairs of eyes and three cameras focus on him. The three cameras transmit his lessons into classrooms miles ...

In the late 1970s, when I was hesitantly moving to be a so- called “research student”, I had all kinds of doubts and apprehensions, as the decision on the “ trade-off “ was too difficult, given the ...