From a regular physics quiz in late March (the blanked out part is just a small note I made while discussing with the student)—
In the comments—
- What was the student thinking? How did he or she decide to make these particular marks on the paper?
- What question or problem would you pose next to help the student make the next step toward understanding?
Maybe for this one, we should focus on question 2. What questions or problems would help the student move toward a better understanding? What would help him/her reason herself out of this mistake the next time an opportunity for it temptingly appears?