At another staff meeting we were in the year 4/5 classroom, and the teaching tool this teacher has prepared for us to look at was one to break up the very long middle session with a fun little exercise using a video from Youtube called Boom Chicka Boom. It is a very daggy video clip where a guy calls out actions and lyrics he wants the audience to do. She said the whole class love it and get really involved, it gets them into a better frame of mind when transitioning from one subject to the next. They can get up and be silly for five minutes, and then they know that the expectation is for them all to settle down and listen to the next lesson once it is finished. She did say that it took a little while to get the class to calm down after it in the beginning, but now once the video is finished they know it is time to sit down and get back to work.