C-SPAN Classroom has organized a collection of videos about 9/11. The videos are intended for classroom use. The collection includes news footage from September 11, 2001 along with reflections on 9/11 from President Bush, Vice-President Cheney, New York City Mayor Rudy Giuliani, and President Obama.
More resources for teaching about 9/11.
Understanding 9/11: A Television Archive is hosted on The Internet Archive. It is an assembled collection of more than 3,000 hours of news footage from September 11, 2001 and the six days immediately following. You can explore the footage in a timeline grid format. I spent time watching some of the news footage and it took me right back to many of the same feelings that I had almost ten years ago watching it live from a FedEx sales office in Tempe, Arizona.
Story Corps offers three animated stories of the real experiences of people affected by the events of 9/11. All three videos are embedded as one playlist below.
Larry Ferlazzo has an extensive list of resources for teaching about 9/11. I highly recommend reviewing his list here.