Have you got a video that explains this more easily?
Yes we do!
We’ve put together this great video that we think sums things up nicely! Take a look (you may even have a starring role if you’ve participated before!)
The video should appear above, if you just see a big white space, then your firewall is blocking YouTube. If that’s the case click the link below and you’ll be taken to our TeacherTube version. 
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