Brain Blasts: Formative Construction Errors :-)

I feel like these suggestions are so applicable to Formative making, that I thought that I would share it. Hope it is helpful. The image is from Todd Finley, you can find him on twitter @finleyt
My favorite two are #8 and 11. I love to start my formatives with a built-in warm-up, not starting with the most difficult questions. And I try not to make my formatives too short so that I make sure that I have enough data to understand student learning.