How Can We Stop Littering In Schools?

To stop littering in
schools, firstly the school students should and must put there rubbish in the
bin at all times to keep the school clean and presentable.

Secondly the principal should enforce the rules for keeping
the area/school clean and reinforce punishments in necessary.

Lastly  the school students should tell others to
pick up there rubbish if seen dropping it and make sure that it goes in the
bin.