Students have been allocated two periods per month for this purpose; usually the 1st and 3rd Monday of every month. During this period, they discuss what they have to do in order to improve the cleanliness in the classroom as well as the 5S implementation. Each class has a small committee and they discuss what they have to do in the classes and in the grade with regard to maintenance.
In the next meeting, they evaluate what did they planned to do, how far they have managed to achieve it. This procedure is repeated in every meeting. There is also a 5S competition where the best class in the grade is awarded a prize.