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Level 1 · ages 6–8OECD MTSpend

What is money and why do we need it?

🎯 Goal: Understand money is used to trade, and long ago people swapped goods.
After this lesson you understand money is just a tool for trading that everyone agrees to accept, invented to replace clumsy bartering. Knowing this, you see money is for using wisely, not for showing off.

Let’s explore

🤝
Long ago there was no money, so people swapped goods for goods: a chicken for some bundles of greens. But what if the person with greens did not want a chicken? Tricky!
🪙
So people invented money — something everyone accepts. You give money, the seller gives you a cake. Everyone is happy!
🛒
Money helps us buy what we need: food, books, clothes. Money is a tool to trade, not a thing to show off.

Practice activity

💡 Think: if there were no money, what would you swap for a carton of milk?
Worked example: You have 3 eggs. You go to the milk seller and ask: “Can I swap 3 eggs for 1 carton of milk?” If she likes eggs, the swap works; if not, you must find something else — that is why people need money.

Quick quiz

1. Before money existed, how did people get what they needed?
→ Swapped goods for goods
2. What is money mainly used for?
→ Trading and buying what you need
3. Why is money easier than swapping goods?
→ Because everyone accepts it
4. If the veggie seller does not want the chicken you bring to swap?
→ Bartering is hard to do
5. When shopping, money helps you?
→ Trade for what you need

🎯 Real-life mission

With a parent, name 3 things your family pays money for this week.

Related lessons

👨‍👩‍👧 For parents: teaching kids money by age

Open the interactive app →

Recognizing Vietnamese money ›

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