Katori hide & reveal
Two-choice discrimination, object permanence, curiosity
Duration
10 min
Steps
4 simple steps
Materials
1 household items
Why this matters
Uncovering a hidden object demonstrates that mental representations exist independently of direct sight.
What you need
- Two steel bowls (katoris), one safe teething toy
How to do it
Sit facing baby on the floor with two katoris placed side by side.
Hold up their favorite toy so they are looking, then place it under the left bowl.
Spread your hands and ask playfully: 'Where is the toy? Can you find it?'
Let baby reach, lift, or knock over the bowl to discover the treasure.
Finished doing this activity?
Mark it done when you and your child have tried it.
Parent tip · What to say
“If baby gets confused, let part of the toy peek out from underneath before hiding it completely.”
What your child practices
Working memory, visual tracking, and bimanual lifting coordination.
Helpful related guide
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