Yesterday I gave a quiz on measurement and data. During the quiz, I noticed a few students really seemed to be struggling with some questions (evidence: prolonged periods of time spent staring at a blank spot on their paper).
So interrupted the class with the following announcement:
Remember, one of the great things about this SBG grading system is that you can always turn in more evidence later. So if you don't know how to do something yet, it really is okay to just write "I don't know yet." We'll keep working on it, and then you can turn in stronger evidence when you're ready."The release from the students was immediate. Tense shoulders relaxed. One student said out loud how much better that made her feel. It was a memorable moment.