Need more clarity with commas? Wondering how to show that grammar and punctuation can affect the meaning of a sentence? Help your students practice identifying restrictive and nonrestrictive elements in sentences with this simple one-page worksheet. Designed for a sixth-grade grammar curriculum, students will read sentences, underline the restrictive or nonrestrictive element in each, and then add commas as needed to set apart nonrestrictive elements. The explanation and examples at the top of the page offer added support for learners new to this concept, or ones who just need a refresher.