This GLAD Editing Checklist is a great resource to use with your GLAD Cooperative Paragraphs.
The file includes the following:
18x24 poster of the checklist
8-1/2x11 printable for students to use
The 18x24 can be printed at an office supply store. To save money, you can print as an engineering print, then laminate and you can reuse over and over with your GLAD units.