I teach in Costa Rica where the majority of the population of the school is Costa Rican. Should I do a lesson on 9/11? Or remember it in anyway? I teach science, but I just think it's so important to remember the tragedy. The other thing is, Costa Rican independence is 9/15 so I don't want to seem insensitive to that. I don't know if it would be appreciated if I did an "American" lesson the week of Independence Day.