I've been thinking about doing something to bring a little of what world can learn about and from 9/11 to the classroom. And this video is by far the best thing I've found.
There are also many very useful resources on the 9/11 Memorial website: http://www.911memorial.org/spirit-volunteerism There's a booklet for teachers with teaching ideas and information about the people and things mentioned in the video.
There are also good resources here: http://onlinelearningexchange.com/content/products/remembering911.html They are made for children whose mother tongue is English, but that only means that we cannot use the resources with young learners and low level students.
This is a picture gallery compiled by yahoo: http://news.yahoo.com/photos/9-11-the-25-most-powerful-photos-1315611364-slideshow/25-most-powerful-photos-photo-1315610966.html Picture no.5 is not for everybody's eyes - I'd think twice before showing it in class. Picture no.15 is something I might definitely use.
Hope you find this useful.
Bye for now,