Another in our series of "watching the un-see-able"
Several tea mugs get smashed in this video, and there's good explanation about what fps means. You'll be able to judge for yourself which speed you think is the most effective. Be sure to watch until the very end - when the cat gets in the window.
I'm not sure I endorse his movie recommendation at the end for Primary students - but there are probably many other instances of slow motion in movies and TV that you see. Do you notice them? After watching this video, can you gauge how slow they are, or guess their fps?
And for the Middle Primary Class: what are the laws of motion in action in this video? Why do the mugs fall? Why do they stop falling? Why do they break? What kinds of energy do you see here?