In 1986 i got a job teaching part time. I never taught before The first class was the 2 hours after i got the job completely unprepared. The first class i gave( in computing) was the P QRST method of learning. preview, question, read, self recite, test. Good to see that almost 40 years later its endorsed by science. And yes, i had a number of students in the top 10 in the country as a result, out of over 2000 students.