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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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Bar graphs

Mathematics · Data & Statistics · representational

Interpret and present discrete and continuous data using appropriate graphical methods, including bar charts and time graphs

What mastery looks like

  • Read a time graph showing temperature changes over a day
  • Present data about plant growth over weeks as a time graph
  • Explain the difference between a bar chart (discrete) and a time graph (continuous)

Check your understanding

Can Bar graphs choose the right type of chart for some data — for example, a bar chart for favourite colours or a line graph for temperature over a week — and draw it correctly?