When we teach our youngest students how to do an armbar, we show them on a grappling dummy. It’s safer. It’s quicker. You don’t have to be patient with your partner. However, it leads to a problem: how do you take this skill you’ve learned on the dummy and transfer it to an actual human?
The best bet, I think, is to have the young student practice it with an adult who is (at least) minimally familiar with the armbar. We hope that this video can help parents learn the basics of the movement so that the students gain a deeper understanding of the technique. Who knows? Maybe practicing the drill back and forth with your kid will even have some parents considering doing some martial arts too!