Here is a worksheet on the Latin word roots equ and equi. As you no doubt recognize, as, let’s hope, your student do as well, these two roots simply mean equal. These roots produce a variety of words that are used across learned disciplines, but especially in quantitative sciences and geography.
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.