I use this for peer teaching of grammatical structures in my French and Spanish classes. However it could be used to peer teach all manner of topics in other subjects. I always remind the students that we remember 90% of what we teach others, it is therefore the most effective way to remember information.
There are lots of creative peer teaching ideas such as:
Mime it!
Sing it: pop, opera, heavy metal, rap…..
Model it: using pencil case items, things in the classroom, things in your bag, plast