(KGNS) - Students and staff at Martin High School gathered to honor first responders who ran toward danger on Sept. 11, 2001.

Campuses across the district held moments of silence and memorial events throughout the day to honor 9/11 victims and local service members.

For students like Heidy Sifuentes, 9/11 is history learned from books and archive clips."Whenever I see this, it gives me a lot of emotion ... I am forever grateful for the people that are helping out-for the police officers, for the firefighters, for all the law enforcement. It is something very hard to get into," Sifuentes said.