Here’s a list of 20 websites and books that can be used to teach kids about 9/11:

Websites:

1. National September 11 Memorial & Museum – www.911memorial.org
2. Scholastic 9/11 Anniversary Teaching Resources –scholastic.com/911
3. 9/11 Education Resources from the US National Archives

– www.archives.gov/education/lessons/911-anniversary

4. 9/11 Memorial and Museum Digital Classroom – 911memorial.org/digitalclassroom
5. September 11th Education Trust – 911educationprogram.com
6. TIME for Kids: The 9/11 Terrorist Attacks

– www.timeforkids.com/g56/september-11-terrorist-attacks

7. Teaching 9/11: Lesson Plans for Elementary/Middle School Students

– www.ed.buffalo.edu/teaching911

8. Smithsonian National Museum of American History: Remembering 9/11

– americanhistory.si.edu/september11

9. Kids Discover: September 11th Attacks

– kidsdiscover.com/quickhunts/september-11-attacks

10. Education Development Center: Teaching 9/11 – modules.learningmedia.org/911 

Books:

1. “Fireboat: The Heroic Adventures of the John J. Harvey” by Maira Kalman

2. “Seven and a Half Tons of Steel” by Janet Nolan

3. “America Is Under Attack: September 11, 2001: The Day the Towers Fell” by Don Brown

4. “14 Cows for America” by Carmen Agra Deedy

5. “The Man Who Walked Between the Towers” by Mordicai Gerstein

6. “September 12th: We Knew Everything Would Be All Right” by Masterson Elementary School Students

7. “102 Minutes: The Unforgettable Story of the Fight to Survive Inside the Twin Towers” by Jim Dwyer and Kevin Flynn

8. “The Little Chapel That Stood” by A.B. Curtiss

9. “The Survivor Tree: Inspired by a True Story” by Cheryl Somers Aubin

10. “The Day the World Came to Town: 9/11 in Gander, Newfoundland” by Jim DeFede

Please note that it’s important to review the resources yourself before using them with kids to ensure they are appropriate for the age group and meet your educational objectives.