Oh yeah, I use it all the time in my teaching and tutoring too! The craft of writing is so important--whether it is a text, social media post or comment, email, sentence, paragraph, essay, article, published book, you name it! Parts of speech are key to diagramming sentences correctly and craftily as well. I remember learning how to diagram sentences and identify the parts of speech therein back in elementary and middle school. It's stayed with me all these years and now I pass on the teaching-learning craft unto my pupils--as both a teacher-tutor, and published author three times over.
Keep up the great teaching on your part! :)