Here is a context clues worksheet on the adjective coherent, which I think comes as close to inarguable as it gets when considering words students should know by the time they graduate high school: students really must know this word.
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.
Mark's Text Terminal 