Commas in a Series Worksheets
When a sentence lists three or more things, commas keep the items from running together: we packed hats, mittens, and boots. First graders learn to spot the list, count the items, and check that a comma follows each one before the last.
By grade
What students need to know
When you list three or more things, put a comma after each one before the last: hats, mittens, and boots.
This skill runs from 1st grade through 3rd grade. Pick a grade above for level-matched sentences, teaching notes, and worksheets.
Commas in a Series across the grades
1st Grade
When a sentence lists three or more things, commas keep the items from running together: we packed hats, mittens, and boots. First graders learn to spot the list, count the items, and check that a comma follows each one before the last.
2nd Grade
Second graders punctuate longer lists of things, actions, and describing words: the class sang, clapped, and cheered. The skill sharpens into catching the two classic mistakes, missing commas and a comma that wandered to the wrong side of and.
3rd Grade
Third graders handle series inside richer sentences, where list items are phrases rather than single words: spring melts snow, wakes bears, and fills rivers. Reading each option aloud and hearing where the pauses fall becomes the reliable check.