7th Grade · Ratios & Proportional Relationships
Origin
7.RP.A.2
Definition
The point (0,0) on the coordinate plane where the x- and y-axes meet.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- A proportional graph always passes through (0,0)
- Start counting from the origin
Key rule
Every proportional relationship passes through the origin.
Memory hook
(0,0) — where both axes cross.