Check out Evaluating an English Lesson by rogersgeorge. Here is an excerpt:
I don’t know whether you’ll get the allusion to the two famous movie critics, but I thought the comic was cute.
http://www.mrfitz.com/strips.php?date=2018-09-30 The best way to treat a grammar lesson, by the way, is to soak it all up!
The full article is available here.