Day 11: SBG and Collaborative 2-Stage Exams
AP Physics C: On Monday, AP students took an exam on most of the material in Chapter 2 of Matter and Interactions. Today, they took the same exam in groups. Open notes, open each other, open anything. Whatever they didn’t finish in class is tonight’s homework. (Note: They did not get Monday’s exam back yet.) I don’t know if I’ll keep doing it — that’s a lot of time to devote to assessment. But yet the conversations going during class today were so great. I think that is what has to keep them honest — hearing the discussion and the explaining and the learning. As soon as it turns into one kid telling all the other what to write down, or everyone working in silence as they all copy off the same kid, then we won’t continue any more.
In my SBG system this year, I’ve switched from last year’s binary system (✓ or ✗) to a traffic light system (green = mastery, yellow = partial mastery, red = no mastery). The binary system had led to a defeatist attitude in some students. Plus, I wanted students to feel some sense of accomplishment for understanding part of a learning objective. Having a partial mastery level also allows me to recognize students who understand the concepts but might need some help or prompting. Students that demonstrate mastery of a concept on a group assessment will score yellow/partial mastery.
Read more about 2-Stage Collaborative Exams here: “Collaborative Testing: Evidence of Learning in a Controlled In-Class Study of Undergraduate Students” by By Brett Hollis Gilley and Bridgette Clarkston.