Great took for classroom management. Chart allows students to move up or down depending on behavior, choices, effort etc.. Each student begins everyday at "Ready to learn" and moves according to their actions/choices and teacher judgment.
I have found it works best using one clothes pin per student. I use a Sharpie marker to carefully write each student's name on the clip. I would also strongly recommend printing, cutting and laminating before hole punching and assembling using string, yarn, ribbon or my personal preference metal rings.