what does the word coordinate mean?falcon.norfolk.sch.uk/images/homelearing/year_6_06072020/... ·...
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What does the word coordinate
mean?
To coordinate means to do
something in a set order.
So coordinates are a way of
ordering things exactly
Monday 6th July
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Examples
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Key words
Quadrant
Coordinates•Used to show a position on a coordinate plane or map
•shown as a pair of letters and/or numbers
•The first coordinate is the horizontal position (x axis)
•The second coordinate is the vertical position (y axis)
•Any quarter of a plane divided by an x and y axis.
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Examples Coordinates
(4,2) - 4 in the horizontal and 2 in the vertical
(x,y) - x is horizontal, y is the vertical
We read and write coordinates in a particular order. Remember the rule, along the corridor and up the stairs!
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(1,6)= n
(3,2)= e
(1,3) = g
(5,3)= a
(6,0)= t
(1,4)= i
(0,2)= v
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Plenary: These four points are the
corners of a rectangle.
How long are the sides of the rectangle?
What are the coordinates of the remaining corner?
What are the coordinates of the middle?
(7,3)
(-4,-1)
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Co-ordinates
in all 4 quadrants
Tuesday 7th July
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Quadrant 1Quadrant 2
Quadrant 3 Quadrant 4
eg: (2,2)eg: (-2,2)
eg: (-2,-2) eg: (2,-2)
origin(0,0)
x axis
1st
y axis
2nd
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Co-ordinates in the 1st Quadrant
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(2,2)
(5,2)
(9,5)
(6,7)
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Co-ordinates in the 2nd Quadrant
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(-2,2)(-3,8)(-7,7)(-9,4)
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Co-ordinates in the 3rd Quadrant
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(-3,-2)(-9,-5)(-7,-9)(0,-6)
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Co-ordinates in the 4th Quadrant
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(4,-1)(9,-7)(5,-5)
(9,0)
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Co-ordinates in all 4 Quadrants
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(2,6)(6,2)
(-3,0)(-6,4)
(-9,-3)
(-1,-6)
(5,-1)
(9,-7)
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For the next couple of days, if you would prefer to watch a video, Y5 have had some WRM
work based on translations and reflection during lockdown.
Even though your work is of a Y6 level, the videos at the link below may be useful as a
reminder.
https://whiterosemaths.com/homelearning/year-5/
For Wednesday’s lesson on translation, use the video Week 11 (6th July) lesson 4.
For Thursday’s lesson on reflection, use the video Week 11 (6th July) lesson 3.
If you prefer, use the following slides to help you!
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What Is a Translation?A translation is when a
shape moves from one
position to another
without being rotated or
flipped.
On this grid, rectangle A has
been moved to position B.
A
B
x
y
Wednesday 8th July
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This is not a translation
because the shape has
been rotated.
What Is a Translation?
A
B
x
y
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Translating Shapes
Is this a translation?
A
B
Yes
This is a
translation.x
y
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Translating Shapes
Is this a translation?
No
This is not a
translation
because the
shape has
been rotated.
A
x
y
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Translating Shapes
Is this a translation?
No
This is not a
translation
because the
shape has
been rotated.
A
B
x
y
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How Do We Describe a Translation?
To describe a translation, you
have to say how many squares
it has moved to the left or right,
and how many squares it has
moved up or down.
AB
The shape has been translated
4 squares to the right. Then
3 squares up.
The coordinates of the black point
on shape A are (1,4).
What are the coordinates of the
point shown on shape B?
(5,7)x
y
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AB
How Do We Describe a Translation?
The shape has been translated
4 squares to the left.
Then 5 squares up.
The coordinates of the black
point on shape A are (5,4).
What are the coordinates of
the point shown on shape B?(1,9)
x
y
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B
How Has This Shape Been
Translated From A to B?
This shape has been
translated 3 squares to the
right and
4 squares down.Can you work out the coordinates of
the black point on shape A and shape
B?
(1,7) (4,3)
Can you work out all the
coordinates of shape B?
(4,3) (8,3) (8,5) (4,5)
A
B
A
x
y
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B
How Has This Shape Been
Translated From A to B?
This shape has been
translated 2 squares to the
left and
5 squares down.Can you work out the coordinates of
the black point on shape A and shape
B?
(8,6) (6,1)
Can you work out all the
coordinates of shape B?
(6,1) (3,1) (3,4)
A
B
A
x
y
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B
How Has This Shape Been
Translated From A to B?
This shape has been
translated 3 squares to the
left and
3 squares up.Can you work out the coordinates of
the black point on shape A and shape
B?
(5,5) (2,8)
Can you work out all the
coordinates of shape B?
(2,8) (4,8) (3,5) (1,5)
B
AA
x
y
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Diving
Reflect these shapes in the mirror lines.
Reflection
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Diving
Which is the odd one out and why? Discuss with your Learning Partner.
Reflection
This is the odd one out. The trapezium has not been
reflected; it has been translated.
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DeeperReflection
Jack is reflecting a triangle in two perpendicular mirror lines.
Where has he made a mistake? What should this triangle look like? Draw on your white
board.
The highlighted triangle was incorrect.
It should look like this if it has been reflected
correctly.
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DeepestReflection
When reflecting through two mirror lines,
although the triangles are congruent, they
look ‘upside down’ to each other.
Which of these shapes, when reflecting
through two mirror lines, will look
identical in all four reflections?
The square, rectangle and circle will all look
identical in each quadrant.
The isosceles triangle, semi-circle and
parallelogram will look ‘upside down’ in two
quadrants.
Can you identify any other shapes that would
look the same in all four quadrants?
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DeepestReflection
You might have thought of a rhombus regular hexagon and an oval.
Are there any other regular polygons that look identical in all four quadrants once reflected?
Can you and your learning partner make a generalisation about reflected regular polygons
and which look identical and which don’t?
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DeepestReflection
You might have noticed that only regular polygons with an even number of sides look identical
when reflected across two perpendicular mirror lines.