Enlargements – Year 5 Maths Unit
Enlargements – Year 5 Maths Unit
Enlargements – Year 5 Maths Unit teaches enlargements through a coherent one-week sequence that balances calculation, construction and mathematical explanation. Students begin with a geometry readiness review, identify one consistent scale factor, calculate original and enlarged lengths, and connect scale factor to perimeter and area.
The unit then moves into regular and irregular grid construction, error analysis and reasoning about what changes or remains invariant. A three-page Scale Factor Match and Sort activity and four-page Grid Enlargement Studio game support collaborative consolidation. The Park Logo Enlargement Challenge provides a fresh assessment context, with matching answer pages and a five-level rubric for efficient marking.
The 40-page printable unit plan is supported by an editable 21-slide lesson presentation and a 22-slide editable quiz with 10 question-and-answer pairs.
What's Included
- Editable Enlargements PowerPoint presentation — 21 slides
- Editable Enlargements Quiz — 22 slides with 10 question-and-answer pairs
- 40-page unit-plan PDF with clean Table of Contents cover
- Enlargement Essentials classroom display — 1 colour page
- Geometry Readiness Review — 2 student pages and 2 answer pages
- Scale Factor Detective — 2 student pages and 2 answer pages
- Perimeter and Area Patterns — 2 student pages and 2 answer pages
- Regular Shapes on Dot Grids — 2 student pages and 2 answer pages
- Irregular Shapes on Square Grids — 3 student pages and 3 answer pages
- What Changes? What Stays the Same? — 2 student pages and 2 answer pages
- Scale Factor Match and Sort activity — 3 colour pages
- Grid Enlargement Studio game — 4 colour pages
- Park Logo Enlargement Challenge — 2 assessment pages and 2 answer pages
- Enlargements – Year 5 Rubric — 1 black-and-white landscape page
- 15 matching worksheet and assessment answer pages
Learning Focus
- Recognise an enlargement as uniform scaling by one scale factor
- Calculate enlarged lengths and work backwards to original lengths
- Explain why perimeter changes by k and area changes by k²
- Identify corresponding sides, equal angles and proportional relationships
- Construct regular and irregular enlargements on dot and square grids
- Explain what changes and what stays the same under a transformation
Classroom Use
Use the presentation to introduce and model concepts, select the differentiated worksheet pages for guided or independent practice, rotate the activity and game through small groups, use the quiz for retrieval practice, and finish with the two-page Park Logo Enlargement Challenge. The complete sequence supports approximately five lessons plus assessment.
Curriculum Alignment
Aligned to Australian Curriculum v9 code AC9M5SP03, with additional mappings for Australian Curriculum v8.4, Victorian Curriculum 2.0, NSW, WA, Common Core, the UK, New Zealand, TEKS and Ontario.
Formats and Answers
PDF and editable PPTX files are included. The printable unit plan is 40 pages, the presentation has 21 slides and the quiz has 22 slides. Fifteen matching answer pages are included.
Digital Licence
This is a digital product; no physical item will be shipped. Files are licensed for the purchasing teacher's, classroom's or household's use under the applicable Sukindi licence. Do not resell, redistribute, upload publicly or share outside the licensed setting.