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ACARA AC9M3P01, Likely, unlikely, certain, impossible

Year 3 · Probability

Identify everyday events that involve chance and describe outcomes as likely or unlikely, and some as certain or impossible, explaining why.

Below are free printable maths worksheets that support AC9M3P01. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teaching guide

What students learn

Identify everyday events that involve chance and describe outcomes as likely or unlikely, and some as certain or impossible, explaining why.

How to teach it

Order events from impossible to certain in everyday language, then quantify simple chances as fractions of the equally-likely outcomes.

Worked example
A bag has 5 counters. 5 are purple. Picking a purple counter is (impossible, unlikely, even chance, likely, certain):
Answer: certain
Why: all 5 are purple, so it always happens

Generated and checked in code, so it is correct.

Watch out for

Assuming a rare-but-possible event is impossible, and thinking past results change the next independent outcome.

Probability worksheets

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Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.

Make a worksheet for AC9M3P01
More Year 3 Probability codes: AC9M3P02
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Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.