ACARA AC9M8ST01, Data collection methods

Year 8 · Statistics

Investigate ways to collect data, including census, sampling, experiment and observation, and explain what each method means in practice.

Below are free printable maths worksheets that support AC9M8ST01. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teach this code

Deliver a whole lesson on AC9M8ST01 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.

Reading data displays and sampling methods

Year 7-9 (ages 12 to 15)

Teaching guide

What students learn

Investigate ways to collect data, including census, sampling, experiment and observation, and explain what each method means in practice.

How to teach it

Compare census, sampling, experiment and observation for the same question, discussing cost, time, bias and how well each represents the population.

Worked example

Why do statisticians usually study a sample instead of the whole population?

Answer: Studying an entire population is often too costly, slow or impossible; a good sample can still give a reliable estimate

Generated and checked in code, so it is correct.

Watch out for

Assuming a small convenience sample speaks for the whole population, and ignoring how the method can bias the data.

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Grade 8 Statistics

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More Year 8 Statistics codes: AC9M8ST02 · AC9M8ST03 · AC9M8ST04

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Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.