I knew my student's family couldn't afford to buy her a gift for Christmas so I gave her some trash.
I hope you are joking! Why would you do such a thing to her?
There are lots of students in school who are having problems with money, so I use this opportunity to give away trash to some of them.
Giving out trash for Christmas is a mean thing to do. It is the opposite of giving appreciation.
I am just doing my job.
As a teacher you should not act so cruel to your students. You should not give out trash for Christmas. It might make the students more upset that they got something so crummy.