Hewlett Foundation: Developing a System of Micro-Credentials
http://www.hewlett.org/wp-content/uploads/2016/08/mc_deeperlearning.pdf

I used a photograph as my QFocus to introduce a unit on World War I, which can be found at the following link: http://web.viu.ca/davies/h482.wwi/photo.WWI.Br.machinegunners.1916.jpg