This Microsoft PowerPoint presentation begins with a brief overview of common errors in comma usage. The opening slides highlight six areas of weakness for many middle school writers, including comma usage when writing dialogue, a series, nouns in direct address, introductory elements, appositives, and conjunctions. Each overview slide contains a simple explanation of the concept at hand, as well as sample sentences showing incorrect comma usage, followed by the correct use of commas.
The latter portion of the presentation focuses specifically on comma usage with conjunctions. As a review, there are slides to explain the difference between simple, compound, and complex sentences. For further breakdown, additional slides are provided to explain independent and dependent clauses, as well as coordinating and subordinating conjunctions. These slides also contain sample sentences that are broken down to identify their respective parts using color-coded highlighting.
Note that there are many individual items used in the slides, like text boxes, shapes, and photos. Elements may not maintain their original placement on the slides if opened using an alternative program.