Thinking & solving

Which container fits

Predict which of several large containers will hold a set of large objects, then test and revise the idea.

10 minutes

What you'll need

Three unbreakable containers · Four to six large blocks or balls

Before you start

Child can explore a simple problem with familiar objects in their preferred position

Best fit: either · calm energy · medium caregiver effort · low mess

How to play

  1. Look at the containers and objects together.
  2. Choose a container and predict whether everything will fit.
  3. Test the idea, then change the arrangement or container as the child suggests.
Make it easier

Compare one obviously small and one large container.

Standard

Predict which of several large containers will hold a set of large objects, then test and revise the idea.

Extend it

Try fitting by changing orientation or estimate which container leaves the most space.

What you might notice

Notice whether the child considers height, width, number or arrangement when revising a prediction.

Keep it safe

Check that every material is intact, age-appropriate and non-toxic. Stay nearby, keep movement at floor level, and let the child stop, simplify or change the activity.

Why it may be useful

This gives your child room to explore while you add just enough help to keep the puzzle interesting.

moderate

Guided-play evidence is stronger in preschool samples; toddler activities should remain simple and child-led.

Jeong et al. (2021) — Parenting interventions to promote early child development in the first three years of life: A global systematic review and meta-analysis

Weisberg, Hirsh-Pasek and Golinkoff (2016) — Guided Play: Principles and Practices

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