This is an easy but quick tool to use for mini plenaries and plenaries. I was introduced to the idea by a maths teacher on a visited to Excelsior Academy during my PGCE 2011-12.
It is based around the talking stick idea. Whoever has the recap hat on their head has to state facts or a method which they have learnt so far. You can also ask questions and have the pupils randomly pass the hat around the classroom and ask each other a question.
The recap hat works best with lower school. I have discovered the pupils love the idea and are keen to get a chance to showcase their knowledge and understanding. It allows all pupils a chance to be heard. This is a tool, which could easily be linked into the plenary leader scheme.