Ironically, blue color trades have known that since their inception. Electricians, plumbers, carpenters, etc all mix book work with hands on training. Why sho

Ironically, blue color trades have known that since their inception. Electricians, plumbers, carpenters, etc all mix book work with hands on training. Why shouldn't all academics follow that proven method (after all, MD's do - can you imagine going to a doctor that only leaned from a book?).