Precautions for cleaning middle school students

Step: 1. Preparatory work: including closing the window; Prepare a broom and mop. 2. Formal action: first sweep away the garbage (such as paper scraps) with a broom, and then mop the floor. 3. Protection after cleaning: Leave as soon as possible after cleaning, and remember to lock the door. Note: 1. Sweep the floor until there is basically no one walking in the classroom. 2. Wash the mop after mopping the floor. 3. Pay attention to the details, and the edges and corners can be cleaned. If it is a floor, please pay attention to mop the floor backwards and wipe the soles on the mop. If it is night, please go home together after sweeping the floor.