As follows we can keep our class or school clean
1 we should throw the dust of sharpener, papers, in the dustbin only.
2 say to the sweeper to wipe the floor every day which makes the floor clean.
3 pasting charts on the walls makes class room colourful
4 preparing  colourful charts and pasting in the notice board looks nice
5 unwanted dust or waste should be dump only in dustbin.
these aspects makes our class room looks beautifull