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ACARA AC9M9SP03, Algorithms for constructions

Year 9 Β· Space

Design, test and refine algorithms built on geometric constructions and theorems, then discuss and evaluate the refinements.

Below are free printable maths worksheets that support AC9M9SP03. 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 AC9M9SP03 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.

Teaching guide

What students learn

Design, test and refine algorithms built on geometric constructions and theorems, then discuss and evaluate the refinements.

How to teach it

Base each algorithm on a known construction or theorem, write it as ordered steps and decisions, test it on cases, then refine the steps that fail.

Worked example
Why is the ORDER of steps important in an algorithm for sorting shapes?
Answer: Following steps out of order can give a wrong or inconsistent classification

Generated and checked in code, so it is correct.

Watch out for

Steps that assume a special case, and not testing the algorithm on tricky or edge examples.

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More Year 9 Space codes: AC9M9SP01 Β· AC9M9SP02
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Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.