Author’s practical guidance
The order changed
Source named in the book: cognitive flexibility in early childhood (Diamond)
Children this age hold the day as a sequence rather than as a schedule.
Say this now
“Something is different today. Grandma is driving. Everything else is the same.”
Marks exactly one thing as changed and closes the rest, which stops the whole day being in question.
“Do you want to know what happens after that?”
Rebuilding the rest of the sequence out loud does more than reassurance about the changed part.
Do this
- Say what is different as early as you know it, and say it in advance.
- Name what stays the same — that list is longer and does the settling.
- Change one thing at a time on days you have a choice.
- Keep the anchors fixed when the middle of the day is unusual.
- Give them a small job in the new version so they have a place in it.
Avoid this
- "It's the same, just a different car." — to you. The sequence is what changed.
- Springing the change at the door — no time to rebuild and no way to ask.
- "You need to be more flexible." — flexibility is the skill in question, not the missing effort.
If it repeats
Weeks with a lot of change in them go better with a fixed opening and a fixed ending, however odd the middle gets. Two reliable points hold a day together better than an explanation does.
Why the book suggests this
Children this age hold the day as a sequence rather than as a schedule. Diamond's work describes what has to happen when it breaks: the expected order has to be dropped, a new one built and the old one kept from reasserting itself. That is the hardest of the executive skills and the last to arrive.
So the size of the reaction has nothing to do with the size of the change. Grandma driving instead of you is a small fact and a total rebuild. The child is not upset about the driver. They are upset that the sequence they were running no longer exists.
Related prepared situations
What happened next?

From this collection
Same Words: Deep Feelings
45 prepared situations in this family area.