What's "school dances?" Are there specific dances for schools?

Native speaker’s answer
Rebecca
Yes, school dances are a type of social event for students. The school will organize a dance in the evening, in which DJs play popular music, and light refreshments like snacks and punch are served. They can be casual or formal and are mostly held in Western countries, although the tradition is now spreading to many other countries. Ex: Our middle school is holding a school dance on Friday. Ex: My friend is super popular. She always has a lot of guys asking her to dance at school dances.