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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.com 1. My shape has equal lengths and 4 right - angles.

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

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4

1 32 540

1

3

2

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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

4

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

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