As this is the "REFLECTION" part, I suggest we could ask to "create a lesson on TED ED (ed.ted.com)".

The lesson (public link) will be the evidence supporting the issuing of a badge.

This is an idea we launched last year at TEDx Bologna 2015, when I spoke about Open Badges. The process is described here: https://blog.bestr.it/en/2015/10/30/become-tedxbologna-thinker