Make them say it out loud
A polished artefact no longer proves understanding. Sixty seconds of a student explaining their own reasoning still does.
Jun 21, 2026 · 1 min read
The OECD's Digital Education Outlook (OECD, 2026) puts it bluntly: when students outsource tasks to generative AI without pedagogical guidance, performance goes up with no real learning gains. The artefact (the essay, the solution, the slide deck) has stopped being reliable evidence. The reasoning behind it hasn't.
Build short spoken explanations into your checking routine: not a formal viva, just sixty seconds of "walk me through it."
In practice
- After any submitted task, pick a step and ask the student to reconstruct it: "Why this method and not the other one?" "What would break if this number changed?"
- You're listening for ownership of decisions, not fluency. Hesitant but sound reasoning passes; smooth recital of unowned work doesn't.
- Make it universal and routine rather than a spot-check for suspects. It's a learning check, not an interrogation, and generating an explanation is itself learning: the self-explanation effect (Chi, De Leeuw, Chiu & LaVancher, 1994).
- One a day is enough. Over a term you'll hear every student several times.
Without pedagogical guidance, outsourcing tasks to GenAI enhances performance with no real learning gains.
OECD Digital Education Outlook 2026
Quick takeaway: in the AI era, the explanation is the evidence.