Coordinates

1
Coordinates
Reading and Plotting Coordinates
Proper Names Grids
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Fun Grids
2
Starter Questions
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3
Coordinates
Coordinates
Learning Intention
Success Criteria

1. To be able to read and plot coordinates on a
   grid.

• To explain how to read coordinate grids and also
• to plot coordinates.

2. To solve problems using grid.
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4
Coordinates
Coordinates
Up
Along 1 Up 1
(1,1)
Along 3 Up 1
(3,1)
5
Along 2 Up 4
(2,4)
4
(0,2)
3
(1,4)
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2
(2.5,2.5)
(3,1)
1
(4,0)
0
(4,2)
1
3
2
5
4
Along
(5,4)
5
Coordinates
Coordinates
Up
(1,2)
(3,1)
5
(2,5)
4
(5,2)
3
(1,4)
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2
(4,2)
(0,3)
1
(3,0)
0
(0,0)
1
3
2
5
4
Along
(2,3)
6
Coordinates
Different Grids
Up
Plot the points
(1,1)
5
(1,3)
4
(3,3)
(3,1)
3
Join up the points What shape do you get
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2
Square
1
0
1
3
2
5
4
Along
7
Coordinates
Different Grids
Up
Plot the points
(1,1)
5
(1,3)
4
(3,3)
(3,1)
3
Join up the points Why shape do you get
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2
Rectangle
1
0
1
3
2
5
4
Along
8
Coordinates
Different Grids
Up
Plot the points
(1,1)
5
(1,3)
4
(3,3)
3
Join up the points Why shape do you get
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2
Triangle
1
0
1
3
2
5
4
Along
9
Coordinates
Coordinates
Now try Exercise 1 Ch12 (page 136)
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10
Starter Questions
6
2
2
6
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100o
11
Coordinates
Proper Names
Learning Intention
Success Criteria

• Know the terms origin ,
• x-axis and y-axis.

1. To explain the proper mathematical names for
various parts of the coordinate grid.

• First number is always
• x-coordinate and
• second number is always the y-coordinate.

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12
Coordinates
Proper Names
X
Up
Plot the point
y - axis
(4,3)
5
4
x-coordinate is 4
y-coordinate is 3
3
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2
(2,4)
x-coordinate is 2
1
y-coordinate is 4
0
X
1
3
2
5
4
origin
Along
x - axis
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Coordinates
Proper Names
Write down the points that have the same x
coordinate
y - axis
5
(2,1)
(2,2)
(2,4)
4
Write down the points that have the same y
coordinate
3
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2
(1,3)
(4,3)
1
(2,2)
(3,2)
0
1
3
2
5
4
origin
x - axis
14
Coordinates
Proper Names
Now try Exercise 2 Ch12 (page 138)
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15
Starter Questions
xo
30o
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16
Coordinates
Fun Coordinate Grid
Making Fun shapes using coordinates
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17
Coordinates
Fun Coordinate Grid
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18
Coordinates
Fun Coordinate Grid
Now try Exercise 3 Ch12 (page 140)
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