ACARA AC9M8SP04, Algorithms for congruence
Year 8 · Space
Design, create and test algorithms that decide whether shapes are congruent or similar, and describe how they work.
Below are free printable maths worksheets that support AC9M8SP04. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.
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Deliver a whole lesson on AC9M8SP04 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.
Teaching guide
Design, create and test algorithms that decide whether shapes are congruent or similar, and describe how they work.
Write the test for congruence or similarity as an ordered set of checks (matching sides and angles), then run shapes through the algorithm and refine any step that fails.
Generated and checked in code, so it is correct.
Assuming shapes are similar just because they look alike, and leaving out a condition the test needs.
Space worksheets
All space worksheets →Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.