18-may-15created by mr. lafferty maths dept. coordinates plotting coordinates coordinates different...
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18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Coordinates
Plotting Coordinates
CoordinatesCoordinatesw
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Different Grids
Proper Names
Extending the Grid
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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1. A TV has be reduced in the sale
by 20%. I t was £ 250. How much is it now.
2. 3×5+36÷9
3. Find two number that multiply to give 10 and
subtract to give 2.
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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1.1. To be able to read a To be able to read a coordinate grid. coordinate grid.
1. To explain how to read coordinate grids.
CoordinatesCoordinatesCoordinates
2.2. To solve problems using To solve problems using grid.grid.
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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CoordinatesCoordinatesCoordinates
1 32 540
1
3
2
5
4
1 32 540
1
3
2
5
4
Along
Up Along 1 Up 1 (1,1)
Along 3 Up 1 (3,1)
Along 2 Up 4 (2,4)
(0,2)
(2.5,2.5)
(4,0)
(4,2)
(1,4)
(5,4)
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try Exercise 1Ch1 (page 2)
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CoordinatesCoordinatesCoordinates
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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1. Find the perimeter of the rectangle.
3. Find all the missing angles.
2. Calculate (a) 15 - 18 (b) - 7 + 20 (c) - 3 - 9
6
2
100o
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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1.1. Draw a coordinate grid.Draw a coordinate grid.1. To explain how draw a coordinate grid and add some points to it. brackets.
CoordinatesCoordinates
2.2. Plot points on a grid Plot points on a grid using using along and up rules.along and up rules.
Plotting Points
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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CoordinatesCoordinatesCoordinates
1 32 540
1
3
2
5
4
1 32 540
1
3
2
5
4
Along
Up (1,2)
(3,1)
(2,5)
(5,2)
(0,3)
(4,2)
(3,0)
(0,0)
(1,4)
(2,3)
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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CoordinatesCoordinates
1 32 540
1
3
2
5
4
1 32 540
1
3
2
5
4
Along
Up Plot the points
(1,1)
(3,1)
(1,3)
Join up the pointsWhy shape do you get
Square
(3,3)
Different Grids
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
1 32 540
1
3
2
5
4
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CoordinatesCoordinates
1 32 540
1
3
2
5
4
Along
Up Plot the points
(0,1)(2,5)
Join up the pointsWhy shape do you get
Triangle
(4,3)
Different Grids
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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CoordinatesCoordinates
1 32 540
1
3
2
5
4
1 32 540
1
3
2
5
4
Along
Up Plot the points
(1,0)
(3,4)
(1,4)
Join up the pointsWhy shape do you get
Rectangle
(3,0)
Different Grids
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try Ex 2 & 3Ch1 (page 5)
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CoordinatesCoordinatesDifferent Grids
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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What is my shape?
2. Calculate 10% of £ 350
3. Calculate the perimeter of the rectangle.
2cm
5 cm
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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1. To explain the proper mathematical names for various parts of the coordinate grid.
1. Know the terms ‘origin’ , x-axis and y-axis.
CoordinatesCoordinates
2. First number is always x-coordinate and second number is always the y-coordinate.
Proper Names
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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CoordinatesCoordinates
1 32 540
1
3
2
5
4
1 32 540
1
3
2
5
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Along
Up Plot the point
(4,3)
(2,4)
X
Xx - axis
y - axis
Proper Names
x-coordinate is 4
y-coordinate is 3
x-coordinate is 2
y-coordinate is 4
origin
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try Exercise 4Ch1 (page 6)
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CoordinatesCoordinatesProper Names
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Starter QuestionsStarter Questionsw
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2. Find the length of the diameter
of a circle if the radius is 6.5 cm.
3. Calculate 6a+ 5b when a=2 b=3
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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1. To show how we can extend the coordinate grid to include negative numbers.
1. Identify main parts of coordinate grid.
CoordinatesCoordinates
2. Understand the negative grid both in y-axis direction and x-axis direction.
Extending the Grid
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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CoordinatesCoordinates
We can show we have gone below the axis by using a negative.
Extending the Grid
1 32 540
1
3
2
5
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1 32 540
-2
1
-1
32
Plot the point(4,3)
(2,-3)x - axis
y - axis
x-coordinate is 4
y-coordinate is 3
x-coordinate is 2
y-coordinate is -3
origin
-3
Write down coordinatesof the other points
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.ww
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CoordinatesCoordinates
We can further extend the negative grid
Extending the Grid
1 32 540
1
3
2
5
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1 32 40
-2
1
-1
32
Plot the point(-2,2)
(-4,-2)x - axis
y - axis
x-coordinate is -2
y-coordinate is 2
x-coordinate is -4
y-coordinate is -2
origin
-3
-4 -2-3 -1
Write down coordinatesof the other points
18 Apr 202318 Apr 2023 Created by Mr. Lafferty Maths Dept.Created by Mr. Lafferty Maths Dept.
Now try Exercise 5Ch1 (page 7)
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CoordinatesCoordinatesExtending the Grid