This is what i wrote, not sure if its any good yet as i havent had it marked yet.
Hope it helps a bit x
You should never ignore or excuse such discriminatory behaviour any more than you would ignore or excuse someone if they inflicted physical pain on someone else. Must be addressed because if you do not respond and just let the incident pass you are contributing to the person feeling that it is acceptable to speak or behave that way.
To promote change you need to change people’s attitude toward other races, sexuality, religion etc. We try to educate our children in school about different culture, disabilities by doing things like having time so that children can share their experiences with each other, and encourage them to think of other people’s feelings and share different options with each other and also give them the opportunity to think about what it is like foe other people and ask them to think about themselves in other people shoes.