Use paper prototypes to solidify initial design concepts before moving to digital tools.
Use Microsoft Word or Google Docs to create a new document and set up your template. 2. Paper Prototyping (Design)
The "Sniper" paper airplane is a highly accurate model that can be folded in under 60 seconds starting with a standard sheet of paper.
If you are "developing on paper" for a design project, use it as an early-stage tool.