Cause & effect1½–3 yrsAt home

The posting box

A slot in a lid, and a job that never gets old.

Prep

3 min

Mess

None

How to play

Cut a slot in the lid just big enough for the caps. He posts them in one by one, then pops the lid off to find them all again.

  1. a tub with a slot cut in its lid, caps beside it
    1

    Cut a slot in the lid, just big enough for the caps.

  2. a bottle cap dropping through the slot in the lid
    2

    Post the caps through, one by one.

  3. the lid off, the caps found inside the tub
    3

    Pop the lid off and find them all again.

What you need

A plastic tub with a lid, and bottle caps or large buttons. Scissors for you.

What it secretly builds

Cause & effect

He's learning that things still exist when he can't see them — the same idea that makes it easier to say goodbye at the door.

Safety first
Use caps too large to swallow, and stay close while he plays.
See it in actionSpin again