Here is a reading on causation along with its attendant vocabulary-building and comprehension worksheet. How much demand will you see for these documents? Well, that depends on your students.
In 16 years of teaching in New York City, I used this set of documents two or three times at the most. I wrote them for one particular student with a surpassing interest in philosophy, but little interest in anything else school offered him. In any case, this is a short reading that touches on the philosophical conundrum of causality. This might be a way to introduce students to the topic, then take them on a short analytical excursion through one of the most commonly committed logical fallacies, post hoc ergo propter hoc–“after this, therefore because of this.”
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.