One thing about teaching is that at times a teacher may never know whether what they are teaching is correct or not. This is especially the case with newbie teachers.
Sometimes I have looked back, and regretted of having taught students something that I came to learn is not the case. This is especially the case with English grammar.
The above is a funny video of a teacher who is teaching the nursery rhymes the wrong way. I haven’t known this clip is from which television sitcom. I will be happy if anyone lets me know.