Here's a PDF and a high-resolution JPEG of a Critical Skills for 21st Century Learners Poster that will complement your classroom and remind learners of why they are learning.
These skills are similar to many different lists in existence, but are not exclusive to me or any other content creator--they are universal skills that we can no longer ignore in education. The artwork is all original to me (and by the way, I can design an original poster for you if you like--just contact me).
Please enjoy! You can print at as large a size as you need due to the high resolution. Use a banner printer, a professional printer, or set print to "tile" and assemble yourself.