A child meets this kind of discipline every time he tries to do something, which is why it is so important in school to give children more chances to do things, instead of just reading or listening to someone talk (or pretending to).
Three Disciplines for Children by John Holt
And also, what does pretending to mean here?
Actdo, which is a pro-verb for any active verb but not for any stative verb (What he did was fix the switch, but *What he did was smell like violets.) The fixed phrase do something means to perform some (possibly unknown) activity. – John Lawler Nov 19 '13 at 17:38