Let the Power Rangers help your students learn the rules of powers! I also have a coordinating foldable available.
I copied the letters onto cardstock, laminated them, then cut them each out (yep, individually). There are two versions of the posters because after I designed the "normal" version, I decided I wanted to mount the posters at a 45-degree angle so I redesigned them to work for that.
Note that the posters are 12" x 12". If you do not have a printer that can handle that size, you could reduce the output during printing.