Here is a worksheet on the Latin roots quin, quint, quintu, and quinque. You probably already recognize the meaning of these roots as five and fifth. This root is very productive in English and probably quintessential to student vocabulary building.
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.