Start at the origin. Count across the x-axis for the first number, then up for the second. Write them in parentheses: (across, up).
originthe point (0, 0), where the axes meet
x-axisthe number line going across
y-axisthe number line going up
ordered pair(x, y): across first, then up
Watch for: Swapping the numbers: writing (9, 5) for a point 5 across and 9 up. Starting the count at 1 instead of at 0. Thinking (3, 7) and (7, 3) are the same point.
At home: Draw a grid and hide a “treasure” at a point. Your child guesses ordered pairs, and you give hints: more across, or more up?
Sample sheet and answer key
Luna's Space Adventure
Grade 5 · The coordinate plane · 5.G.A.1
NameDate
Astronaut Luna is exploring a far-off corner of space. Solve each problem to help Luna's mission go smoothly!
Name the points
Across first (x), then up (y).
A =
B =
C =
D =
E =
Which comes first?
Circle the answer.
In (3, 7), the 3 tells you to move…acrossup
The point (0, 0) is called the…originaxis
Is (1, 6) the same point as (8, 1)?yesno
Sheet
Luna's Space Adventure
Grade 5 · The coordinate plane · 5.G.A.1
Answer key
Astronaut Luna is exploring a far-off corner of space. Solve each problem to help Luna's mission go smoothly!
Name the points
Across first (x), then up (y).
A =(1, 3)
B =(8, 5)
C =(1, 2)
D =(8, 1)
E =(9, 2)
Which comes first?
Circle the answer.
In (3, 7), the 3 tells you to move…acrossup
The point (0, 0) is called the…originaxis
Is (1, 6) the same point as (8, 1)?yesno
Answer key
New problems every time, three levels (gentle, core and stretch), themes to pick from, a second page if you want one. Each sheet comes with an answer key and a one-page guide for grown-ups.