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Thinking play

What's Different

Parent arranges 5-7 objects; child memorizes, closes eyes, parent changes one - child spots the change.

Cartoon illustration of a parent and child at home doing What's Different.
  • Age3 to 7 years
  • Time5 to 15 minutes
  • EnergyCalm
  • CostFree
  • WhereIndoors
  • Prep5 min

Arrange 5-7 small household objects in a row, give your child 30-60 seconds to study them, then ask them to close their eyes while you make one change. They open their eyes and figure out what's different. A classic memory and observation game with no materials beyond what's around the house.

How to do it

  1. Gather 5-7 small objects from around the home: a spoon, a small toy, a cup, a coin, a key, a block. Arrange them in a line or loose group where your child can see them clearly.
  2. Tell your child: "Look at these carefully. Try to remember everything you see." Give them 30-60 seconds to study the objects.
  3. Ask them to close or cover their eyes. While they do, make one change: remove an object, swap the position of two objects, or turn one object upside-down or backward.
  4. Say "Open your eyes: what's different?" Give them time to look and think before offering any hints.
  5. If they find it, acknowledge the find and offer another round. If they're stuck after a genuine search, point to the area where the change happened (not the object itself) as a first hint.

What you need

  • Household objects

Signs it is working

Your child studies the objects carefully during the memorising window and scans the arrangement purposefully when searching for the change. They identify the change correctly at least some of the time and ask for another round. Over multiple sessions they can handle subtler changes (a moved object rather than a removed one)

If it is not quite clicking

Child can't spot the change: Simplify the starting set to 3-4 objects and begin by removing one entirely: a full removal is the easiest change to detect. Once they're finding removals reliably, introduce position swaps as a harder challenge. Child finds every change too easily and loses interest: Use more objects (up to 10), or try two simultaneous changes with an older child (5+). Child peeks during the change: Treat it as a game feature rather than a rule infraction: ask them to help you set up the next round instead, which keeps them engaged as collaborators.

Make it yours

Younger, 3-3.5 years: Reduce to 3 objects and only ever remove one: never swap positions. The visual comparison task is already demanding at this age. Older, 5-6 years: Increase to 8-10 objects; use position swaps and orientation changes rather than removals; add a second simultaneous change. Siblings: Mixed ages work if the younger child handles 3-4 objects and the older handles 6-8; run as two separate short rounds or alternate who sets up the change. Child-led variant: Once they know the game, let the child arrange the objects and make the change while the parent closes their eyes. They enjoy being the setter. Open-ended extension: After they spot the change, ask "What else could you change? Is there another change that would be harder to spot?" There is no right answer: the child invents the challenge. This shifts the game from observation to open-ended design thinking. Try-your-own-way variation: Invite your child to play the game in a completely different way: they can add objects instead of removing them, use more or fewer objects, or make two changes at once. Let them decide the rules: there is no wrong version.

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