Today's New York Times Magazine has articles about education, one, "Fortress of Tedium", i.e. on high school, by Nicholson Baker. I had seen reviews of his book about working as a substitute teacher, and so had a look. Near the bottom of the second page, I found the sentence
The result of my 28 hellish, joyous days of paid work (I made $70 a day)
was a book, more chronicle than meditation, called "Substitute: Going
to School with a Thousand Kids."