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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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How Breathing Works

Science · The Human Body · conceptual

Know that we breathe air into our lungs through the nose and mouth, that our lungs take in oxygen from the air which our body needs to stay alive, and that we breathe out carbon dioxide as waste

What mastery looks like

  • Trace the path of air: nose/mouth → windpipe → lungs
  • State that lungs take oxygen from the air, which the body needs
  • State that we breathe out carbon dioxide, which the body doesn't need

Check your understanding

After running around, can How Breathing Works notice their faster breathing and explain that their lungs are taking in air that the body needs?

Prerequisites

None — this is a foundational concept.

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