When one of my tutoring students with learning difficulties asked me what a period was, I made this 8 1/2 by 11 inch poster. I got the idea from another website of how to set it up, but it was too extensive for lower elementary. So I made my own with the colors I wanted.
The punctuation marks are period, comma, apostrophe, exclamation point, question mark, colon, semi-colon, quotation marks, and parentheses. They are displayed on one page.
I hope this small poster will be of a help to you. You have my permission to enlarge it. Please follow me and leave feedback as I continue to add more things to my store.