Changing an answer is not the goal by itself
New evidence may conflict with part of an earlier idea, giving you a reason to revise it. An idea that still fits can also stay. Rather than “Good, you changed it” or “You should have known,” discuss which information led to the decision.
A surprising test result can still provide an observation. But noticing that a prediction differed from the result does not necessarily identify the cause. If several explanations remain, consider what to check next.
Try at home: one closed road on a paper map
Write Home, Park, Shop and Library on paper. Draw two routes: Home–Park–Library and Home–Shop–Library. Explain first that you can travel only along the drawn lines.
- Invite your child to trace one connected route from Home to Library. Either route works.
- Add new information: “The road between Park and Library has now closed.” Mark that line with an ×.
- Check whether the original plan uses the closed road. If it does, find an open route.
- If your child chose the Shop route first, check it against the update. They can keep it if it still works.
A plan that fitted the first map may no longer fit after a condition changes. That does not make the earlier plan a mistake. Leave the first route visible so you can compare exactly what changed.
What to say before another attempt
- “I got it wrong again. I’m done.”
- “We can stop here. If you want to return to it, we can look for just the road that changed.”
- Your child changes an answer at random.
- “Which part of the first plan no longer fits the update? Could we change just that part?”
- Your child keeps the first answer.
- “Those roads are still open. You kept the route because it also fits the new information.”
Start by marking the closed road together rather than rebuilding the whole plan for your child. Describe the action you noticed: “You found the closed road and adjusted the route.” If your child does not want to continue, one scene can be enough for today.
Separate new information from a missed rule
A road closing is a new condition. Trying to travel where no road was drawn calls for another look at the original rule. Separate the questions “What has changed?” and “What did we miss in the first instructions?”
In the screen activities, choices can be revised before pressing a check button. Read each game’s card conditions and retry guide first. Earning a card need not be the only purpose of playing together; identifying one thing you learned can also be a place to finish.
One question to finish
Ask: “Which part of your plan did this information make you change—or keep?” Your child can point to the old and new routes instead of giving a spoken explanation. A successful retry does not by itself show independent success in a new situation, and the number of attempts is not a measure of character or ability.
Continue the conversation through play
Mark changed conditions on a map and revise a plan
Delivery after the bridge closes
Plan deliveries to School and Clinic and a return to Depot. After a bridge closes, compare safe plans and find an alternative using different roads. The shortest route is not the only valid answer.
When your child is ready to compare predictions with test records
Discover the hidden device
Predict and test three candidate rules. A disproved hypothesis still gives you evidence, and several remaining candidates can be a reason to investigate further.
Further reading: the original resource
This Project Zero resource explores reflecting on how and why an idea has changed. The paper map and family conversation here were written separately by LogiCorgi.
I Used to Think... Now I Think...
Project Zero, Harvard Graduate School of Education
These are suggestions for activities and conversations, not evidence of a learning effect from an individual game or an assessment of a child’s ability.