lot of things to do on teacher's day like :
1. you may arrange party for you teachers.
2. you may give  greeting with some beautiful quotes, wishes, messages, etc.
3. you may say thanks to your teachers because they gives u more and better knowledge also.
4. you may gift also
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If you want to present something to teacher there are lot of things to do like:-
1. you can sing a song for her in group written by you.
2. you can make some sweet dish for her.
3. you can decorate the room and wish her.
4. you can gift her something nice.
5. you can be silent and obedient in class.
6. you can  make a card with her photo.