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Education Concept Tracker

A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

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Buying Things

Life Skills · Money & Finance · conceptual

How buying and selling works: prices, paying for items, receiving change; the basic transaction process in shops and markets

What mastery looks like

  • Explain what happens when you buy something in a shop (choose, pay, get change)
  • Read a price label and say whether they have enough money to buy the item
  • Act out a simple buying scenario using real or play coins

Check your understanding

If Buying Things had a £2 coin and wanted to buy a snack for 80p, could they work out roughly how much change they'd get back?