There's no one-size-fits-all answer to this question, as dress code policies can vary widely from school to school. However, in general, Crocs are not considered appropriate attire for most schools' dress codes. This is because they're casual shoes that are more suited for leisure activities than formal occasions. Additionally, Crocs often have holes and perforations in them that can make them look unkempt or sloppy. For these reasons, it's best to err on the side of caution and leave your Crocs at home when heading off to school.