Voice Level Chart with Chevron and Chalkboard Design! The Voice Level Chart is a quick and easy way to refer to the noise level in your classroom. Would add a arrow of some sort to indicate what voices they should b using!
Noise Level Clip Chart (couple different varieties) - Great idea so kids always know what voice level to use and you don't have to always be telling them, can even make it a job for a kid to change it to Level 3 during literacy stations each day and 2 during independent work, etc.
This website provides different types of "noise level charts" that can be printed off. This is great for the visual learners, so they can actually see what level the class or individual's noise level may be at throughout the day.