Flipped physics from UK
http://iopscience.iop.org/0031-9120/48/5/593/pdf/0031-9120/48/5/593.pdf
Various assessments from NCSU
http://www.ncsu.edu/per/TestInfo.html
test on Gauss law understanding – need password
http://www.compadre.org/per/items/detail.cfm?ID=11957
Twitter physics education links
https://twitter.com/EducatePhysics
Education – scientific abilities from Rutgers PER
http://paer.rutgers.edu/ScientificAbilities/Rubrics/default.aspx