Behavior Classroom Management Tool for Teachers. This would also work great in a homeschool environment. Quiet critters only come out of their jar when students are working quietly. They are a great tool to help control sound level & focus in a fun way. Each set includes 15-16 critters & their safe “sound proof”, plastic 16oz jar. No two critters are alike. You will 2 sets. 2 Jars Of Quiet Critters, Behavior Classroom Management Tool, Homeschooling Teacher Resource, Elementary Students, Reward Jar