The Supermarket Swap: teaching needs and wants in one shop

A 15-minute activity for ages 7-9 that turns a normal food shop into a lesson on needs versus wants. Nothing to print, nothing to buy.

👦 Ages 7–9
⏱️ 15 minutes
🛒 During a food shop
✅ Nothing to print

Children hear “we can’t afford it” and “you don’t need that” constantly, without ever being told the difference. This activity makes the distinction concrete, using a trolley you were filling anyway.

What you need
Nothing. Just do it while you shop.

How it works

  1. Explain the two words before you go in. A need is something we’d struggle without — food, soap, school shoes. A want is something nice that we’d still be fine without. Keep it to two sentences.
  2. Give your child a job. As you put each item in the trolley, they call it: need or want. Don’t correct them yet.
  3. Let the tricky ones happen. Biscuits? Shampoo versus the nice shampoo? These are the interesting ones, and children usually spot the difficulty themselves.
  4. Ask one question at the end. “If we could only take home the needs, what would we have to put back?” Let them answer. Don’t fill the silence.
  5. Say the honest part. We buy wants too, on purpose, because a life of only needs would be miserable. The skill is knowing which is which.
What they’re learning

That spending is a choice rather than a fixed fact — and that the same item can be a need or a want depending on the situation.

What usually happens

Most children put everything they like in the “need” column at first. That isn’t failure, it’s the whole point — you can watch them work out the difference in real time, which sticks far better than being told.

Expect an argument about whether treats are a need. Let them make the case. A child defending a position is a child thinking.

Make it easier

Do one aisle rather than the whole shop, and start with obvious items — bread, then sweets.

Make it harder

Add a third category: “need, but a cheaper version would do.” That’s where real budgeting starts.

Needs and wants is lesson 2 of the Smartmonies programme, where children take it further with sorting games and a budget challenge. See the ten lessons →

Start your child’s money journey

A free digital lesson and a free 20-minute taster class with a qualified teacher. No payment, no card details.

Your lessons, classes and materials are waiting in your account.

Get started

Discover more from Smartmonies

Subscribe now to keep reading and get access to the full archive.

Continue reading