Summary
How can a sentence run if it can’t even walk? In this BrainPOP movie, Tim and Moby will introduce you to this very easy-to-fix grammatical error! Find out how a run-on sentence happens and what it can look like. You’ll also learn two ways to fix a run-on sentence, including how to do it with punctuation and how to do it with conjunctions. Finally, you’ll learn what kind of sentences can become run-ons and why sentence length isn’t important. So long as your sentence makes sense, run with it!
Viewer safety
Ages 7+
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Teaching resources
Discussion questions
A few questions to talk through after watching Run-On Sentences:
- What is one new thing you learned about run-on sentences?
- Can you explain it to a partner in your own words?
- Where might you see this in the real world?
- What is one question you still have?
Quick work-a-long
Try it:
- Write one sentence explaining run-on sentences.
- Draw or give one example of your own.


