6th Grade · Ratios & Proportional Relationships
Scale Factor
6.RP.A.3
Definition
The number every measurement is multiplied by to make a scaled copy, larger or smaller.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- A scale factor of 2 turns a 2-by-3 rectangle into a 4-by-6 rectangle.
- Every length is multiplied by the same factor.
Key rule
Multiply every measurement by the same scale factor.
Memory hook
One number, applied to every length.