In the primary grades, it's often best to not give students every supply they will need on the first day of school. Instead, I do this gradual guided discovery and "certification" unit to slowly introduce each item to students (even if they used it in the previous grade!) We begin each day by discussing how we use a supply and charting some expectations for ourselves (what to do and what not to do with each supply). Then students have an opportunity to explore the material before taking the "certification" test. In order to be certified, they must pass, and I use the first page of this download to create a BINDER where I hold onto all completed certifications throughout the year. For example, to be "Eraser Certified" they must prove that they can effectively erase ALL THE WAY (often primary students only erase halfway then write on top, leading to a mess) and without ripping the paper. When they are finished, they must be checked off (if I can still see any pencil, they must go back and keep erasing),and I usually give a stamp of approval on the paper, signifying that they have "passed." This provides a chance for students to prove that they have "mastered" using that supply. Later on in the year, if they begin to slack, they can lose their certification and have to re-take the exam at a later date. (e.g. if a student is chronically ripping paper because of hastily erasing, or chewing on an eraser, they can lose their certification for a week before retaking the test). Above all else, this helps students establish and understand clear expectations for themselves on how to responsibly use the many supplies in the classroom. It's also a fun activity for that first week of school! Enjoy!