This is a worksheet and PPT on run-ons, fragments, and comma splices. It could be used for grades 5-8, as a first-time introduction or just a review. The PPT shows definitions and examples of run-ons, fragments, and comma splices, and how to fix them. The worksheet, which can be used for practice or assessment, includes 10 items asking students to identify whether each sentence is a run-on, fragment, or comma splice, then asks students to write the sentences correctly. This also includes a rubric, especially handy for proficiency-based grading. Enjoy!