These cards can be printed on paper or card stock and then laminated or put in sheet protectors. (tes.com)
Mesquite teachers put plastic sheet protectors on their worksheets so that students can write on the plastic, then wipe it off, which keeps the sheets ready for reuse year after year. (edutopia.org)
Use sheet protectors to keep your master copies clean and reusable. (goalbookapp.com)