Today I delivered PD on screencast Marking.
We discussed the recipe of marking from Headteacher Guru: http://headguruteacher.com/2012/11/10/mak-feedback-count-close-the-gap/
And created a screencast using Explain Everything
https://itunes.apple.com/cn/app/explain-everything/id431493086?mt=8
I include here the suggested workflow that we created: Organising your workflow with screencast marking