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

Compound Units

Mathematics · Ratio & Proportion · procedural

Use compound units such as speed (distance ÷ time), unit pricing (cost ÷ quantity), and density (mass ÷ volume); solve problems involving compound units

What mastery looks like

  • Calculate average speed given distance and time, converting between km/h and m/s if needed
  • Compare unit prices of two products sold in different quantities to find the better deal
  • Use the density formula to find mass, volume, or density given the other two values

Check your understanding

If a car travels 150 miles in 2.5 hours, can Compound Units work out its average speed — and use the same idea to solve problems about price per kilogram or density of a material?