Comma Rules Introduction - Presentation, Practice Activity, Handout, and Posters: Mastering comma rules is made easy with our comprehensive resource that includes a presentation, practice task card activity, student handout, and classroom posters. These resources will introduce students to the eight essential comma rules: using a comma between items in a series, after an introductory element, to set off appositives, in a direct address, before a coordinating conjunction, to set off non-essential