Maths Co-ordinatesWednesday 13th May 2020

Move on a grid

Weekly overview-what we are doing this weekMonday- Describe PositionTuesday-Draw on a GridWednesday-Move on a GridThursday- Describe movement on a gridFriday- Using co-ordinates

Wednesday

Today we are going to move on a co-ordinate grid.

Write today’s date and LO in your book13.05.20LO: Move directions on a grid

Key Vocabularyco-ordinate, grid, move, right, left, up, down, translate

Warm up

Set a timer and see how long it takes you to answer these times table facts. Each day the same facts will be on the warm up slide… but in a different order. Can you get faster each day?7x4= 9x5=9x7= 12x3=3x9= 8x4=10x2= 6x8=11x6= 2x12=12x5= 7x7=

Answers

Set a timer and see how long it takes you to answer these times table facts. Each day the same facts will be on the warm up slide… but in a different order. Can you get faster each day?7x4=28 9x5=459x7=63 12x3=363x9=27 8x4=3210x2= 20 6x8=4811x6=66 2x12=2412x5= 60 7x7=49

BBC Bitesize

Watch this to remind you of co-ordinate grids.https://www.bbc.co.uk/bitesize/clips/z7qmpv4

Moving on a grid. To move on a grid we need to use these instructions:right, left, up and down

For example:If we start at the red circle.We move two to the right we end up at 8,1Then we move three up. We are now at 8,4, the right angled triangle.

Let’s try one togetherI begin at the green right angled triangle.I move 7 up. I am at 2, 9Next I move 3 right.Where am I now?

Answer

I begin at the green right angled triangle.I move 7 up. I am at 2, 9Next I move 3 right.Where am I now?Purple Equilateral triangle

Have a go with these space objects

Answers

TranslationSliding the shape into a new position is called translation.Translate each shape 1 square up. What would the new coordinates be?

( , )

( , )

( , )

( , )

( , )

Answer

( 1 , 8 )

( 5 , 9 )

( 9 , 8 )

( 5 , 4 )

( 2 , 2 )

Activity one:

1. Write the coordinates of .

2. Translate the 3 down and 4 right.

3. Write the coordinates of the in its new position.

4. Write the coordinates of .

5. Translate the 2 left and 3 up.

6. Write the coordinates of the in its new position.

Activity one: Answers1. Write the coordinates

of . (2,9)2. Translate the 3

down and 4 right.3. Write the coordinates

of the in its new position. (6,6)

4. Write the coordinates of . (5,5)

5. Translate the 2 left and 3 up.

6. Write the coordinates of the in its new position. (3,8)

Activity two:Translate point A 3 down and 7 right.Translate point B 2 left and 6 down.Translate point C 5 up and 3 left.

Write the original coordinates of each point then write the coordinates of the new translated position.

Activity two: AnswersTranslate point A 3 down and 7 right.Translate point B 2 left and 6 down.Translate point C 5 up and 3 left.

Write the original coordinates of each point then write the coordinates of the new translated position.A = (2,5) to (9,2)B = (7,9) to (5,3)C = (8,1) to (5,6)

Activity threePaul has translated the black rectangle. The translated shape hasbeen drawn in red.Is Paul’s translation correct? Explain.

Activity three: Answers

No. A translation shouldonly change the positionof the shape and nothingelse. Here the translatedshape has changed sizenot just position.

Paul has translated the black rectangle. The translated shape hasbeen drawn in red.Is Paul’s translation correct? Explain.

True or False

Answers

Well done Year four

Until our next lesson, play this coordinate game in the First Quadrant.https://mathsframe.co.uk/en/resources/resource/469/Coordinates-Alien-Attack