These posters are used to help your class's noise level at an appropriate volume!
Circles are 20cm in diameter.
There are 5 posters; a heading 'voice check' poster, and four noise level posters.
There are 3 different fonts to choose from for the heading 'voice check' poster.
I stick my posters to the side of my whiteboard, and whenever I need my students to be silent or whisper, I take the poster and stick it in the middle of the whiteboard, so students can see it very clearly.