What are some games websites that work at school

There are lots, but your school might have a different type of firewall and they might also have them blocked with other software.

Schools generally take the stand that students should be studying and paying attention in school, and not be playing games on the computer or hand-held devices. Since we only get one chance in our lives to do well in school, it is best to follow your school's rules and expectations. Playing games should be done at home.