What is the purpose of a school locker? The purpose of a school locker is to keep any books you don't currently need in a safe place. How has the way you use a locker changed since you first started school in kindergarten, for example? In kindergarten, we used lockers for snacks and in High School, lockers are used for books. How many times do you visit and open your locker each day? I do not have a locker, as I don't see the point. Do teachers or school administrators have any safety or security concerns about lockers? What are they? Yes, they are afraid that stuff will get stolen out of the lockers. What types of materials is your locker constructed from?