Class

The textbook mentions Macbeth because they assume that all high school students would be familiar with Shakespeare's greatest plays.

Me: Does anyone know what Macbeth is?
12th grade student: Yeah, I do. He's a crime-fighting dog.
Me: Ummm...You're thinking of McGruff.

Also, this was one of my best students. He's at least making associations with the words I use in class.