Schools often block "Gaming" categories on their firewalls to ensure students focus on classwork. Using specific search terms (like adding "unblocked" to the query) can help you find mirror sites that haven't been categorized yet.
As schools move toward AI-driven content filtering, the era of simple "unblocked" sites may be ending. However, Duckmath games are evolving too. Developers are now creating: duckmath games unblocked
Most public and private schools use content filtering software (like Securly, GoGuardian, or Lightspeed) to restrict access to: Schools often block "Gaming" categories on their firewalls