M-STEP
https://wbte.drcedirect.com/MI/portals/mi/
M-STEP Practice
https://wbte.drcedirect.com/MI/portals/mi/ott1
SBAC Practice
http://sbac.portal.airast.org/practice-test/
M-STEP Informational Video
https://assets.drcedirect.com/States/MI/Tutorials/Student/20170113/index.html