OK, here is a learning support on capitalization. This is a bare-bones document–a single paragraph excerpted from Paul Brians’ book Common Errors in English Usage. This is (as is most of what you’ll find on Mark’s Text Terminal) is a Microsoft Word document, so you can manipulate it as is or easily export it to a word processor of your choice. There is plenty of blank space on this page to, say, make a worksheet or whatever else you may see fit to to with it.
If you find typos in this document, 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.