Schools across the United States are taking increasingly different approaches to teaching the September 11 attacks, as a growing number of pupils reach the classroom with no personal memory of the events.
At least 40 states now have a law, education standard or other policy covering how public schools should teach or commemorate 9/11, according to an Associated Press analysis. The requirements range from detailed lessons on the attacks and their aftermath to optional guidance left largely to schools and individual teachers. ([apnews.com](https://apnews.com/article/5bbe944901f47ae0b87d09ef3300a608?utm_source=openai))
The issue has become more pressing as the 25th anniversary approaches. Nearly 3,000 people were killed on September 11, 2001, when hijackers crashed four passenger planes into the World Trade Centre, the Pentagon and a field near Shanksville, Pennsylvania.
About one in 10 American adults was born after the attacks and knows about them only through accounts from other people, according to the Pew Research Center. Among 18 to 24-year-olds, 60 per cent said they first learned about 9/11 in class or through schoolwork. ([pewresearch.org](https://www.pewresearch.org/short-reads/2026/09/03/9-11-memories-remain-vivid-in-the-us-25-years-later/?utm_source=openai))
How US states teach September 11
Twenty-five states specifically require or expect public schools to provide instruction on the attacks, while a further 13 make optional references to 9/11 in their standards. Several others encourage schools to hold commemorative activities without setting out a detailed curriculum. ([apnews.com](https://apnews.com/article/5bbe944901f47ae0b87d09ef3300a608?utm_source=openai))
The content can vary considerably. Alabama places 9/11 within lessons on US military involvement in international conflicts since 1980, with teaching beginning as early as the fifth grade. Texas includes the attacks and surrounding events in lessons on radical Islamic terrorism and modern American history.
Colorado guidance allows high-school pupils to examine the consequences of the attacks, including discrimination against people from the Middle East. New Mexico standards can encompass the wars that followed, changes to US law, the detention of suspected enemy combatants at Guantanamo Bay and abuse at Abu Ghraib.
In states including California, Florida, New Jersey and North Dakota, pupils may also be expected to consider the tension between national security and civil liberties in the years after the attacks.
Jeremy Stoddard, an education professor at the University of Wisconsin who has studied the teaching of 9/11, said states that now include the attacks in their standards appeared to be addressing them in greater depth than in the past.
That leaves teachers balancing historical accuracy with the need to keep lessons appropriate for younger children. Educators must explain the scale and consequences of the attacks without exposing pupils to unnecessarily graphic or frightening material.
Arizona illustrates how that balance is being handled through legislation. A 2022 law established September 11 as an education day and required public schools to provide age-appropriate teaching on the attacks. In March 2025, lawmakers narrowed the instruction requirement to schools serving pupils in grades seven to 12. ([azleg.gov](https://www.azleg.gov/legtext/57leg/1r/bills/sb1225s.htm?utm_source=openai))
State Senator John Kavanagh, the Republican sponsor of the original measure, said younger children should be protected from the full horror of the attacks while older pupils should not lose sight of their significance.
For many young Americans, school is now the principal place where that history is encountered. The differing rules across the country mean that what pupils learn about 9/11 – from the attacks themselves to the wars, security measures and civil-liberties debates that followed – can depend heavily on where they live.
