https://docs.google.com/document/d/1RvJxNzxD1PmZm29kQ_ceqxqHoNYZG-DrGpq-wUDSgsU/edit?usp=sharing
https://khanacademy.zendesk.com/hc/en-us/articles/360040167432-How-can-Khan-Academy-be-used-for-remote-learning-during-school-closures-
https://studyladder.com.au
https://www.controlaltachieve.com/2016/02/creating-video-pd-google-tools.html
http://e.issuu.com/embed.html?d=magazinet4l_issue06&u=technology4learning
