When I taught high school in Lower Manhattan, The Canterbury Tales was in the English Language Arts curricular cycle. I have always assumed that one of the big ideas in teaching this book was continuity and change, particularly where language is concerned. After all, this book is a significant moment in the evolution of English as a vernacular language.
I worked up this reading on Geoffrey Chaucer and its accompanying vocabulary-building and comprehension worksheet to assist the kids in my classes to prepare to read and at least gain some understanding of the own of Chaucer.
If you find typos in these documents, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.