Algorithms that produce number sets
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Log in to continueBuild a sequence of tests and explain its output pattern.
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Start at 2. Add 3 each time. After 2 updates, what number is shown?
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Answer: 8
- The starting number is not an update.
- Add 2 × 3: 2 + 6 = 8.
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Curriculum reference
Victorian Curriculum F–10 Version 2.0
Pi Leo practice scope
Build a sequence of tests and explain its output pattern.
Read the official VCAA curriculum description (VC2M6A03)
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- Supported by the guided activity; selecting an MCQ does not demonstrate this action.
- VC2M6A03-C01Use a start value and a fixed update to generate number patterns, count updates and reverse a linked rule.
- VC2M6A03-C02A condition is tested on the current state each time. A clear trace table prevents confusing old and new values.
- VC2M6A03-C03Test candidate numbers against an inclusion rule, retaining only allowed multiples within the stated endpoints.
- VC2M6A03-C04Designing and using an algorithm and interpreting the generated set.
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Subskills
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Descriptor-derived subskills
- D01Trace and reverse repeated updatesUse a start value and a fixed update to generate number patterns, count updates and reverse a linked rule.
- D02Trace decisions repeatedlyA condition is tested on the current state each time. A clear trace table prevents confusing old and new values.
- D03Select values that pass a ruleTest candidate numbers against an inclusion rule, retaining only allowed multiples within the stated endpoints.