The Coordinate Plane unit pack (Grades 5-6 · CCSS 5.G.A.1, 5.G.A.2, 6.NS.C.6, 6.NS.C.8): every worksheet and exit ticket for this unit, ready to print in one go. The answer keys print at the end, each on its own page, so you can leave them off. To make a PDF, click Print and choose "Save as PDF." Games: Battle on the Coordinate Plane
Battle on the Coordinate Plane
Grades 5–6 · CCSS 5.G.A.1, 5.G.A.2, 6.NS.C.6, 6.NS.C.8 · Pairs with the Battle on the Coordinate Plane game
Name
Date
An ordered pair is (x, y). Start at the origin (0, 0). x comes first: move left or right. y comes second: move up or down.
· Negative x = left, negative y = down.
Key vocabulary
coordinate plane: a flat grid formed by two number lines that cross at right angles
x-axis: the horizontal number line
y-axis: the vertical number line
origin: the point (0, 0), where the axes cross
ordered pair: two numbers (x, y) that name one point; the order matters
x-coordinate: the first number: how far to move left (negative) or right (positive) from the origin
y-coordinate: the second number: how far to move down (negative) or up (positive)
quadrant: one of the four regions made by the axes, numbered I to IV counterclockwise from the upper right
Part A: Read the points (first quadrant)
Write the ordered pair for each point.
1. A =
2. B =
3. C =
4. D =
Part B: Read the points (all four quadrants)
Write the ordered pair for each point.
5. P =
6. Q =
7. R =
8. S =
Part C: Plot and label the points
9. Plot and label each point on the grid.
E (1, −2) F (−3, 0) G (−1, 2) H (2, 3)
Part D: Quadrant or axis?
Write the quadrant (I, II, III or IV), or write axis if the point is on an axis.
10. (2, −3)
11. (−1, −1)
12. (0, 2)
13. (−3, 1)
14. (3, 0)
15. (1, 2)
Part E: Read carefully
16. The y-coordinate is 1 and the x-coordinate is −2. Write the ordered pair.
17. Move 3 units down and 2 units left from the origin. Write the ordered pair.
18.Find the mistake. Sam was told to plot (3, −1). Sam started at the origin, moved 1 unit left, then 3 units down. What went wrong? Where should the point be?
2. The y-coordinate is −1 and the x-coordinate is 3. Write the ordered pair.
3. Is (0, −3) in a quadrant? Explain.
Answer Key: Battle on the Coordinate Plane
For the teacher
A = (2, 5)
B = (5, 2) (the same numbers as A, in the other order, make a different point)
C = (0, 3) (on the y-axis)
D = (4, 0) (on the x-axis)
P = (−2, 3)
Q = (3, −1)
R = (−3, −2)
S = (0, −3)
E is 1 right and 2 down (Quadrant IV); F is 3 left on the x-axis; G is 1 left and 2 up (Quadrant II); H is 2 right and 3 up (Quadrant I).
IV (x positive, y negative)
III (both negative)
axis (x = 0, so it is on the y-axis)
II (x negative, y positive)
axis (y = 0, so it is on the x-axis)
I (both positive)
(−2, 1): x always goes first, even when y is named first.
(−2, −3): left 2 is x = −2, down 3 is y = −3.
Sam used the second number first (and moved left for −1). x = 3 comes first: move 3 units right, then y = −1: 1 unit down. Sam's point was (−1, −3); the correct point is (3, −1).
#2, #16 and #18 catch students who reverse x and y. In the game, the plane always flies left or right first, and repeated shots are allowed, so a reversed shot lands visibly in the wrong place.
(3, −1) (x always goes first, even when y is named first)
No. x = 0, so the point is on the y-axis, 3 units below the origin. Points on an axis are not in any quadrant.
Quick read: (−1, 3) on #2 means the student wrote the numbers in the order they were read; "Quadrant III" or "IV" on #3 means they don't yet see axis points as a separate case. Have them play Hard mode, where the computer's shots often name y first and Radar Checks include points on an axis.