PDF Elementary Art Noise Level Sign
All you need to do is print, glue back to back, laminate and leave a small boarder when you cut.
When a class gets loud, I flip the T for Table Talk voices, then the R for Whisper and the A for Silent.
This one you can NOT edit.
This one you can EDIT https://www.teacherspayteachers.com/Product/EDITABLE-Elementary-Art-Noise-Level-Sign-2381150#