Enlargement by Negative Scale Factor (H)
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Interpret and use negative scale factors for enlargements (KS4 Higher only)
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Teaching for Understanding
Resources and ideas to promote understanding
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Fluency
Collections of standard practice problems in various formats
Worksheets
Fractional and negative SF - spell a word (alicecreswick via TES)
Five question grids with problems on fractional and negative enlargements, which spell out the letters MATHS.
8-bit Mario negative enlargements (solvemymaths)
Great practice using negative scale factors to produce an 8-bit picture of Mario.
Negative scale factor enlargement worksheets (eChalk)
Free printable worksheets - saves a considerable amount of time drawing graphs and grids.
Enlargement with Negative Scale Factors (alutwyche via TES)Quick, simple printable worksheet.
Enlargement worksheet - negative scale factors (HolyheadSchool via TES)
Standard worksheet with lots of negative scale factor practice. Diagrams will need copying into books.
Five question grids with problems on fractional and negative enlargements, which spell out the letters MATHS.
8-bit Mario negative enlargements (solvemymaths)
Great practice using negative scale factors to produce an 8-bit picture of Mario.
Negative scale factor enlargement worksheets (eChalk)
Free printable worksheets - saves a considerable amount of time drawing graphs and grids.
Enlargement with Negative Scale Factors (alutwyche via TES)Quick, simple printable worksheet.
Enlargement worksheet - negative scale factors (HolyheadSchool via TES)
Standard worksheet with lots of negative scale factor practice. Diagrams will need copying into books.
WHiteboard Display
Coming soon.
Revision Resources
Maths takeaway booklet - Enlargements by negative scale factor (KESH)
Exam questions for Edexcel 1MAO specification; valid for all 2015 GCSE specs.
Revision booklet (CorbettMaths)
QR linked to video revision; old spec but still valid.
Exam questions for Edexcel 1MAO specification; valid for all 2015 GCSE specs.
Revision booklet (CorbettMaths)
QR linked to video revision; old spec but still valid.
Enrichment, Extension and Problem-solving
Resources to extend thinking, enrich lessons or enhance problem-solving skills
Longer tasks and investigations
Enlargement scale factor root 2 (Don Steward)
While not a negative enlargement problem, I've included this here as it's a really nice, challenging problem with lots of scope for links to other topics.
While not a negative enlargement problem, I've included this here as it's a really nice, challenging problem with lots of scope for links to other topics.
Other Links and Resources
Useful stuff that doesn't fit anywhere else
Interactives
Enlargements teaching tool (EChalk via Eduqas)
This interactive has options to select negative scale factors, and show/hide centre of enlargement, scale factor and coordinate axes; the best I've found for demonstrations.
This interactive has options to select negative scale factors, and show/hide centre of enlargement, scale factor and coordinate axes; the best I've found for demonstrations.
