PLATE XV   Page 212, closed on purpose.

NOTE 14 · CHAPTER III

The answer you had to find

HABITAT    Classrooms, books, everyday learning

Students who read a passage once and then tried three times to recall it remembered about 61 percent a week later. Students who simply read it four times remembered about 40 percent. Five minutes after studying, rereading looked better; a week out, the order had flipped.27 Pulling an answer out of memory seems to strengthen it more than putting it back in.