Support · Mathematics Standard 11–12 – Year 11 · Data analysis

Support Identify and describe real-world examples illustrating appropriate and inappropriate uses of measures of centre and measures of spread

Resources for the prerequisite content of this dot point: earlier-stage (or earlier sub-level) dot points in the same strand that students usually need first. Use these to fill gaps before or alongside the core lesson.

Prerequisite links are draft mappings generated from the syllabus structure (earlier stage, same strand, closest content). They are being reviewed by teachers. Spot a poor match? Tell us.

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Prerequisite dot points

Determine and justify the most appropriate measure of centre to summarise the data in its context

Stage 4 · Data analysis Draft mapping

No checked resources on this prerequisite dot point yet.

Identify standard deviation as a measure of spread

Stage 5 · Data analysis A Draft mapping

  • Interactive toolStarter
    Maths Is Fun: Standard deviation
    Maths Is Fun · Interactive (browser) · Free · Link checked 2026-10-15 · No prep
    Use it for: Plain-English explanation of standard deviation with worked examples and questions.

Identify the range as a measure of spread to describe variation in a dataset

Stage 4 · Data analysis Draft mapping

  • PhET Center and Variability
    PhET Interactive Simulations · Interactive (browser) · Free · Link checked 2026-10-15 · Hands-on, No prep
    Use it for: Kick a soccer ball to build datasets; see how outliers shift mean, median, range and IQR.
  • Corbettmaths practice questions: Averages: median
    Corbettmaths · Web page · Free · Link checked 2026-10-15 · Answers included, No prep, Printable
    Use it for: Free printable graded practice questions (with answers) on averages: median for drill or a quick check.
  • WorksheetDrill
    Kuta free worksheet: Center and spread of data
    Kuta Software · PDF · Printable PDF · Free · Link checked 2026-10-15 · Answers included, No prep, Printable
    Use it for: Printable skills-practice sheet with answer key on center and spread of data; good for drill or homework.
  • WorksheetDrill
    Kuta free worksheet: Centre and spread
    Kuta Software · PDF · Printable PDF · Free · Link checked 2026-10-15 · Answers included, No prep, Printable
    Use it for: Printable skills-practice sheet with answer key on centre and spread; good for drill or homework.
  • VideoStarter
    Corbettmaths video: Averages: range
    Corbettmaths · Video · Free · Link checked 2026-10-15 · No prep
    Use it for: Short worked-example video on averages: range to model the method before practice or for flipped revision.