I taught critical thinking for over 20 years to freshpersons, so only a year or so older than your students. I think we are very much on the same page, and use similar teaching techniques. You might be interested in the textbook I wrote for my course, which I put online here on Medium. Check it out let me know what you think.https://teedrockwell.medium.com/using-logic-in-real-life-a-training-manual-for-your-rational-faculty-23266c6e9273