The Tuesday lesson that exposed the problem
Maya, a Year 9 pupil I tutored last autumn, could add fractions correctly at home. In a Tuesday session, I wrote 3/4 + 1/6 on the whiteboard and asked for the first step. She stared at the board, rubbed out a half-written line, and said, “I don’t know.” The problem was not the arithmetic. It was the freeze: a 20-second silence that turned a familiar procedure into evidence that she “couldn’t do maths.”
Why a small blank becomes a big stop
The cause was a missing script for uncertainty. Maya had learned rules for correct answers but had no language for a half-formed thought. When working memory filled with “don’t get this wrong,” she stopped retrieving the method she already knew. The result was a predictable loop: pause, erase, apologise, wait for rescue. That loop cost more lesson time than the original mistake would have.
The duffspin routine, step by step
The version I now use with tutees is the duffspin routine: a three-step response for the moment an answer goes wrong or stalls. It does not rescue the pupil immediately. It gives them a small, repeatable move.
- Name the duff. The pupil says what they tried, even if it is incomplete: “I think I need a common denominator, but I froze on 12.” Naming the attempt separates the person from the error.
- Spin it into a question. They turn the stuck point into one askable question: “Do I find the common denominator before I change both fractions?” This is the spin: a private doubt becomes a usable query.
- Return with one small move. They take one concrete action, such as listing multiples of 4 and 6. The goal is re-entry, not a full solution.
What changed in the next lesson
One week later, Maya met 5/8 + 1/3. She paused, said “duffspin,” and wrote: “I tried eighths and thirds, then stopped.” Her question was precise: “Can I list multiples before I decide the denominator?” She then listed 8, 16, 24 and 3, 6, 9, 12, 15, 18, 21, 24. The answer followed without the eraser. The routine had cut the freeze from roughly 20 seconds to four.
Keeping the routine honest
A duffspin is not a way to lower standards or praise wrong answers. It is a script for the gap between knowing a rule and using it under pressure. In practice, it works best when the tutor models it once, then hands it over: “Name the duff. Spin it. Return with one move.” Used that way, the routine protects lesson momentum and gives anxious learners something more useful than silence.
