This is a color poster that is intended to be printed on 13" x 19" paper (which fits many printers/copiers).
This poster shows, in very simple terms, what digits are significant. It uses three basic examples to get the point across. This is intended to be seen clearly across the room.
I offer another poster that is similar, but explains Sig Figs with a little more detail with more examples. I show both posters side by side in my classroom.