AI Constitution

Resources · Learning tool

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.

Sign in to track your progress and get personalized recommendations. You can browse freely below.

Knowledge-graph map

Computing
Mastered Ready to learn LockedHover a node for its description · click to open
← Back

Needs & Wants

Life Skills · Money & Finance · conceptual

The difference between things we need (food, shelter, clothing) and things we want (toys, treats); that we sometimes have to choose because money is limited

What mastery looks like

  • Sort a set of pictures into 'need' and 'want' categories and explain their choices
  • Give an example of something everyone needs and something that is a want
  • Explain why a family might choose to buy a need before a want

Check your understanding

If you showed Needs & Wants pictures of a winter coat, a toy robot, and a loaf of bread, could they tell you which ones are needs and which is a want?