Printable Fragments and Run-Ons Worksheets
Printable fragments and run-ons worksheets for 2nd through 5th grade, with an answer key on every sheet. The sets below cover 2 different skills, so you can start where your child actually is. Available as word problems.
Targeted Practice by Skill
About Fragments and Run-Ons
What this skill is
Sentence fragments are incomplete thoughts missing a subject, predicate, or complete sense (e.g., "walking down the street"). Run-on sentences (and fused sentences) incorrectly join two or more independent clauses without proper punctuation or conjunctions (e.g., "I love dogs they are fun"). Solvers study sentence boundary errors, fragment correction, run-on repair, sentence editing, clause separation, and punctuation boundaries across paragraph drafting, essay editing, and standardized writing tests.
When children learn it
Identifying basic fragments and comma splices begins in 3rd grade. In 4th grade and 5th grade, students master repairing complex fragments (adding missing subjects/verbs or attaching to main clauses) and fixing run-ons (using periods, semicolons, or comma + coordinating conjunctions) across writing workshops, peer editing, and essay revision.
Common Mistakes
- Fixing a run-on by simply adding a comma without a coordinating conjunction (creating a comma splice error).
- Mistaking long descriptive fragments for complete sentences simply because they contain many descriptive modifying words.
- Over-correcting by turning every sentence into a short, choppy sentence instead of using proper conjunctions.