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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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Knowledge-graph map

Life Skills
Mastered Ready to learn LockedHover a node for its description · click to open
Buyers & SellersBuyers & Sellers — locked When someone makes or has something, they can sell it; when someone wants something, they can buy it; introduction to the concept of exchange and transactionsGoods & ServicesGoods & Services — frontier Some people make things (goods) and some people do things for others (services); recognising both in everyday life and understanding that both have valueMaking Something to SellMaking Something to Sell — locked The experience of creating a product to sell — a craft, a drawing, baked goods; what makes something worth buying; pride in making something others wantTeamwork in BusinessTeamwork in Business — frontier Most businesses need more than one person; working together, dividing tasks, and using different people's strengths; the value of teamwork in businessScaling UpScaling Up — locked What happens when a small business grows; making more products, hiring people, reaching more customers; the challenges and opportunities of scalingSupply ChainsSupply Chains — locked Where products come from before they reach the customer; raw materials, making, transporting, and selling; the journey of a product from start to finishBuying ThingsBuying Things — locked How buying and selling works: prices, paying for items, receiving change; the basic transaction process in shops and marketsCoins & NotesCoins & Notes — locked Recognising common coins and notes, knowing their values, and understanding that different combinations can make the same amountJobs People DoJobs People Do — frontier Different kinds of work people do; that people earn money by working; how jobs help the community; linking personal interests to possible jobsNeeds & WantsNeeds & Wants — locked The difference between things we need (food, shelter, clothing) and things we want (toys, treats); that we sometimes have to choose because money is limitedSaving MoneySaving Money — locked Why people save money; piggy banks and saving jars; setting a savings goal; the idea that not spending now means having more laterWhat Money IsWhat Money Is — frontier What money is and why we use it; that money is exchanged for goods and services; brief history from barter to coins to digital paymentsEarning MoneyEarning Money — locked Ways that children and adults earn money; the connection between work, skills and pay; that harder or more skilled work often pays moreHow the Economy WorksHow the Economy Works — locked What an economy is; producers and consumers; supply and demand; why prices change; the basics of how markets work
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Expanded noun phrases (age 9+)

English · Grammar & Punctuation · procedural

Form and use prepositional phrases (preposition + noun phrase) to add detail about time, location, or direction within sentences, recognising how they function as adjective or adverb phrases

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What mastery looks like

  • Identify the preposition and noun phrase within a prepositional phrase, e.g. in 'under the old bridge', 'under' is the preposition and 'the old bridge' is the noun phrase
  • Add prepositional phrases to expand sentences with detail about where, when, or how, e.g. 'The cat slept' → 'The cat slept on the warm windowsill throughout the afternoon'
  • Distinguish prepositional phrases functioning as adjectives (modifying nouns: 'the house on the hill') from those functioning as adverbs (modifying verbs: 'she ran across the field')

Check your understanding

When Expanded noun phrases (age 9+) writes directions or descriptions of a place — like "behind the old tree" or "near the top of the hill" — do they use prepositional phrases naturally to show where or when something is?

Prerequisites

Required first

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