When my son was in grade school during the eighties, during summer vacation I backed up what he had learned in the previous year with the Scholastic Summer Skills Program, so that he would hit the ground running in the fall. 
I had a lot of sympathy for his teachers because, frankly half the returning students should have not been moved to the next grade level. 
Today, tens of millions of dollars is spent on computer technology. So why aren't school districts gravitating towards the Khan Academy approach to learning using information technology and computers. 
I ran this past a tier two teacher friend and he practically freaked out, saying people would be laid off and our kids would become zombies. What is going on?