The mysterious comma is arguably the trickiest form of punctuation, which is why assigned it it’s own unit in 5th grade. As students become more sophisticated writers they craft more complex sentences. They incorporate independent phrases and clauses, generate compound sentences, and utilize transition words to combine ideas - and the exercises in this unit will teach them how to use commas correctly in each scenario.

A sentence stands alone to express a complete thought. Surprisingly, most 5th graders still need to revisit the concepts of complete sentences and fragments and how to punctuate the four different kinds of sentences. Combining shorter sentences into longer, more complex sentences is another skill that requires practice. Students get all of that needed review in this unit, in addition to learning how to identify and fix run-on sentences.