This product includes six pairs of a comma rule with a coordinating mentor sentence for 12 posters in all. It also includes a poster titled, "Why Writers Use Commas" to put in the middle of the comma rules and mentor sentences posters. It's the perfect reference tool for your classroom to help students understand where and why commas are placed into sentences.
A complementing resource to pair these posters with is linked below. Use mentor sentences to teach all six comma rules!
Teaching Commas Through Mentor Sentences