Enlargement

What 2 things do you always need to say to describe an enlargement?

How many times bigger you have make the shape

What does centre of enlargement mean?

The size of an enlargement is described by its scale factor.

What is a scale factor?

The scale factor of enlargement is how many times bigger a shape has been made

Explain how to work out the scale factor on a grid, and with no grid. Use diagrams you have screenshot from the myimaths lesson.

What happens to the angle sizes in the corner of the shape when you enlarge it?

• all angles stay the same

• relative sizes are the same 

Translation

Explain what a translation is 

A translation is an object that changes its position but not its size or shape. 

Explain how a vector works. What does it look like? What does the top number indicate? 

A vector is numbers in brackets ( ) that moves the shape up or down left or right

the top number is left or right, you move it left if it is a negative number - and right if it's positive.

What does the bottom number indicate?

The bottom number indicate if the shape goes up or down

if it goes down then it must be a negative number and if it goes up it a positive.

Give a real life example of when translation is used. 

You use translation when you are in a elevator because you go up or down 

Rotating Shapes

What 3 things do you need to say to describe a rotation? 

Where the centre of rotation is

How much it is turned though.

Weather the rotation is clockwise or anticlockwise

Explain what centre of rotation means

 Centre of rotation means the coordinates that from where the shape will be turned from.

 

Now use these 3 things to describe the rotation on Page 1 of the myimaths lesson

The centre of rotation is 0,1

The turn is 90

The rotation is clockwise

Rotational Symmetry

Questions:

1. In your own words explain what rotational symmetry is. A rotational symmetry is when a shape can be lifted up and placed inside it self in other ways.
2. How is rotational symmetry different from line symmetry? A line symmetry is when a object or shape mirrors the other half and a rotational is when a shape can be lifted up and placed inside it self in other ways, you can't do that with a line symmetry you can't make it the same because it's a mirrors
3. What do you do to check if a shape has rotational symmetry?
4. 
   
5. Find pictures of 3 real life objects which have rotational symmetry (not shapes, objects e.g. foods, logos) and paste them into your post

Complete this table

Multiplying fractions rhyme.

How to Multiply Fractions

 The question: 4/5 x 2/3 =

Step 1:  Times the two numerators together  what would be 4 x 2 = 8

Step 2: Then Multiply the denominators together what would be 5x3= 15

Step 3:  Now you simplify before you get your final answer


The answer: 4/5 x 2/3 = 8/15

Sometimes it can't be simplify so just leave the answer how it is But if you can simplify do.