Texas Education Agency
Texas Gateway: Use a Variety of Correctly Structured Sentences
Learn to avoid fragments and run-on sentences while correctly combining clauses to create an effective variety of sentences, including complex, compound, and compound-complex.
PBS
Pbs Learning Media: Sentence Fragments
Sentence fragments can't stand alone, because they do not express a complete thought. Run-ons put two complete sentences together in one sentence without separating them. [0:35]