One of my JTE's wanted to review this grammar point recently and wanted to see how the students would handle a grammar lesson done through English.
I'm aware this isn't something that happens often, but I thought that I'd upload the presentation just in case anyone would like to use it.
Please keep in mind that the class did this with had a very decent level, so they handled the English grammar level well, but as always you know your own classes better so please use your own judgement as to whether this is appropriate for your students or not.