A small cup of cold water is poured into one corner of the bath, a cup of slightly warmer water into the other. The child uses feet and hands to find where the temperatures change and map each zone. Paying attention to body sensation rather than speech settles the nervous system in a way that conversation usually cannot.
What you need
- small cup of cold water
- small cup of warm water
How to do it
- 1Feel for the warm spots and cold spots with your feet.
- 2Find the coolest spot with your feet. Then find the warmest.
- 3Where does the cold water end? Let them draw the boundary.
- 4Watch the zones dissolve as the water mixes. 'What's happening now?' Then be quiet.
Variations
- Korb-Tür: If they won't search — just sit still. Pour the waters yourself and let them feel it come to them. Movement is optional.
- Ausstieg: The temperatures mix completely. 'All one temperature now.' Stillness and silence as it settles.
💡 Parent tip
Ensure the warm water added is comfortable — not hot. The difference between zones should be noticeable but gentle. This is a sensory investigation, not a test of tolerance.
What your child develops
- Interoception — using the body as a measuring instrument builds sensitivity to physical sensation
- Heat transfer intuition — cold and warm water mix and equalise, which is observable in real time
- Spatial reasoning — mapping invisible properties (temperature) onto a physical space
Safety notes
- Check water temperatures carefully before adding. Never leave children unattended in the bath.
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