6th Grade · The Number System
X-coordinate
6.NS.C.6c
Definition
The first number in an ordered pair, showing horizontal distance from the origin.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- In (3, 2), the x-coordinate is 3 — move right 3.
- The x-coordinate tells how far to move left or right.
Key rule
The x-coordinate is always listed first in an ordered pair.
Memory hook
First number, left-right movement.