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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

Computing
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Coordinates (age 12+)

Mathematics · Geometry · conceptual

Understand similarity as a relationship where one shape is an enlargement of another; construct similar shapes by enlargement with a given scale factor and centre, with and without coordinate grids

What mastery looks like

  • Enlarge a shape by a given scale factor from a specified centre of enlargement
  • Determine the scale factor between two similar shapes by comparing corresponding sides
  • Explain why corresponding angles in similar shapes are equal while sides are in proportion

Check your understanding

If Coordinates (age 12+) wants to enlarge a photo so it's three times bigger, can they work out the new dimensions — and explain that the shape stays the same but all lengths increase by the same factor?

Prerequisites

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