6th graders alive today are only 11 or 12 years old, which means that many were not alive on 9/11/01, when the Twin Towers fell in New York City. For them, the story of 9-11 is historical fiction.
References to 9-11 go over their heads. They don’t know anything about Jurassic Park, Star Wars, or Indiana Jones. Walking on the Moon? Ancient history since it took place in 1969.
Here’s a quick look at the Wikipedia entries for
Read through the entries and think about these years as the only context that sixth graders have.