Design Thinking at the Dinner Table: The Double Diamond for Families

What the Double Diamond Is

The Double Diamond is a map of how designers solve problems, drawn as two diamonds side by side. The first diamond opens up to understand the problem — Discover — then narrows to state it clearly — Define. The second opens again to generate options — Develop — then narrows to a choice you act on — Deliver. It was popularised by the UK Design Council, and it works just as well for choosing a CCA as for designing an app.

The shape matters more than the jargon. Diverge before you converge. Understand before you decide. Most family arguments about decisions are two people converging at different speeds — one still exploring while the other is already defending an answer. The Double Diamond simply makes the speeds visible, and gives everyone permission to stay open a little longer.

The First Diamond: Understand Before Deciding

Discover means gathering before judging. If your child is choosing a CCA, this stage is taster sessions, chats with seniors and honest questions about what they enjoy — not a shortlist. The rule is simple: no options eliminated yet. Discovery dies the moment someone says 'that one's a waste of time'. Give the stage a fixed window — two weeks is plenty for most family decisions — so that exploring does not become stalling.

Define means agreeing what the decision is actually about. 'Pick the CCA that looks best for university' and 'pick the CCA you will still enjoy in two years' are different problems with different answers. Write the chosen version down in one sentence. Half of family decision conflict dissolves at this step, because everyone is finally solving the same problem.

The Second Diamond: Options Before Commitment

Develop means generating more options than you need. Planning a holiday? Everyone proposes two itineraries, including one deliberately odd one. The odd options are not wasted — they reveal what people value when they react to them. A child who rejects the beach week because 'there's nothing to photograph' has just told you something useful.

Deliver means choosing, acting and reviewing. Book the trip. Then — and this is the step families skip — talk afterwards about what worked and what you would change. Designers call it iteration. It is how the next decision gets easier than this one.

Three Decisions to Practise On

Start with decisions that are genuinely open, where the adults have not already chosen. Children can tell the difference. And run one decision a month at most — the method loses its charm when every choice becomes a project.

• Choosing a CCA — Discover through taster sessions; Define what the CCA is for; Develop a shortlist of three; Deliver by committing for one term, then reviewing honestly.
• Planning the year-end holiday — Discover everyone's one non-negotiable; Define the trip's purpose, whether rest, adventure or time together; Develop rival itineraries; Deliver and debrief on the flight home.
• Buying a first camera — Discover by borrowing and renting before owning; Define the budget and the main use; Develop a comparison of three models; Deliver, then check in a month on whether it earns its place in the bag.

What This Has to Do With Design Class

When children learn design properly, the Double Diamond — or a close cousin of it — is the underlying rhythm of everything they do. They practise sitting with an open problem instead of grabbing the first answer. They practise defining before building. They practise generating options they know will be discarded, and receiving critique without treating it as defeat. Running the same rhythm at the dinner table shows them the method travels.

It is also a quiet answer to the question 'what does my child actually learn in design class?' Not software. A way of moving through uncertainty in order. At GaiaX the Double Diamond sits underneath our programs for exactly this reason — the tools change every few years, but the method is the part that lasts.