When there are three or more words or phrases in a series, commas should be used. This video will show you all about how to use commas in a series!
Commas Worksheets:
https://www.teacherspayteachers.com/Product/Commas-In-a-Series-In-Dates-Punctuation-Worksheets-for-Daily-Grammar-Practice-1786870
Commas Hands-On Activity:
https://www.teacherspayteachers.com/Product/Comma-Center-Activities-dates-and-series-2458022
Commas Boom Cards:
https://www.teacherspayteachers.com/Product/Commas-Boom-Cards-Distance-Learning-3688784
Commas PowerPoint Lesson:
https://www.teacherspayteachers.com/Product/Commas-Interactive-PowerPoint-Lesson-2575593
