Color-coded slides model for viewers the various uses of the comma and the period. The rule is presented and followed by several examples. Consider extending the lesson with a practice exercise.

Thoroughly review where to put commas: after an introductory clause, before a coordinating conjunction, around nonessential phrases, etc. Furthermore, avoid comma splices by adding a conjunction or semicolon or by starting a new sentence...

As a short review of punctuation, such as the use of commas and semicolons, this presentation could be helpful in an upper elementary classroom. The series of slides defines each term and provides examples.