I think this lesson could be done if your students have1. Very high level of English. I'm talking they can express themselves fully and not in broken sentences.2. They are mature 6th graders. When I worked at a hakwon I had the opportunity to work with some VERY VERY intelligent and mature 6 grade girls. They were very worldly (travel outside of Korea often) and their English was superb. (They were CDI students after all, so they came to my English hakwon and that hakwon as well.) I was able to have a lesson about global terrorism with them and how it effects the lives of normal everyday Muslims. It was probably one of the most rewarding and simulating lessons I ever had. And the girls came away with a better understand of how radical groups were not the same as normal worshipers.Only under these circumstances you could attempt a lesson about this but it would have to be simplified and not get too complex. Even explaining 9/11 was a very complex issue because I had to explain why the US was targeted to begin with.But if your students have VERY POOR ENGLISH SKILLS AND you can see they are very immature to begin with THAN DON'T EVEN WASTE YOUR ENGERY OR BREATH. Seriously I once did a powerpoint presentation about my wonderful vacation to Egypt and I had some little 6th grade snot kept saying ISIS, ISIS,ISIS the whole time. I was only showing pictures of food, the people, and the pyramids and this dumba** kept saying "EVERYONE ISIS" It really worked my nerves I told him to go stand outside till class was over because he kept disrupting the presentation. Mind you my presentation wasn't a huge history lesson. I even played a game in the end where the kids had to write numbers in Arabic. For those who appreciated it, they had a good timeI WOULD NOT DO A Blacklivesmatter lesson with any grade under 6th. It's too scary and complex. And showing VIDEOS ARE OUT OF THE QUESTION IN MY OPINION!