1. LO To assess my understanding of ratio and proportion
RAG
Key Words: Reflect, Communicate, Explain, Justify
13/11/2018
Starter Activity
Complete the ‘Heard the Word Grid.’
Are there any key words that you have learnt or have a better understanding of now than you did at the start of this unit of work?

2. Ratio and Proportion Grade F E D C B A
I can use ratio to compare one amount to another.
I can simplify a ratio.
I can compare prices of products to find the ‘best buy.’
I can divide an amount into a given ratio.
I can solve problems using ratio in appropriate situations .
I can solve direct proportion
problems.
I can find formulae describing direct or inverse proportion and use them to solve problems.

3. Ratio Simplest Form Equivalent Direct Proportion Inverse Proportion
Key Words / symbols
Never heard before?
Heard of but not sure what it means?
Know what it means and can explain it in context
Jot down your ideas here...
Ratio
Simplest Form
Equivalent
Direct Proportion
Inverse Proportion

4. What is the ratio of strawberries to pears?
Grade F Questions
Answers & Working Out
What is the ratio of strawberries to pears?
Is this the same as the ratio of pears to strawberries? Why?
Here is part of a recipe for a cake.
Flour 600g
Sugar 400g
Jane uses 200g of sugar.
How much flour does she need?
How do you know?
Print slides 2-10 two slides to a page.

5. Grade E Questions
Answers and Working Out
Write the ratio in its simplest form.
How do you know when a ratio is in its simplest form?
In a recipe for 6 people you need 120 g flour and 270 ml of milk.
How much of each ingredient does a recipe for 2 people require?
Here is a ratio
16 : 12

6. Grade D Questions
Answers & Working Out
A pile of sand has a weight of 60 kg.
The sand is put into a small bag, a medium bag and a large bag in the ratio 2 : 3 : 7
Work out the weight of sand in each bag.
small bag kg
medium bag kg
large bag kg
Look at the information below.
Tin A Tin B
400g for 60p g for 70p
Which tin is better value for money?
How do you know?

7. Grade D Questions
Answers & Working Out
The ratio of yogurt to fruit puree used in a recipe is 5 : 2.
If you have 24g of fruit puree, how much yogurt do you need?
If you have 350g of yogurt, how much fruit puree do you need?
Four scented candles cost £11.00
What will 9 scented candles cost?
Explain fully how you worked this out.

8. Grade C Questions Answers & Working Out
Here is a list of ingredients for making 18 mince pies.
Elaine wants to make 45 mince pies.
Elaine has:-
1 kg of butter
1 kg of flour
500 g of sugar
600 g of mincemeat
6 eggs
Does Elaine have enough of each ingredient to make 45 mince pies?
You must show clearly how you got your answer.

9. 5 schools sent some students to a conference.
Grade C Questions
Answers & Working Out
5 schools sent some students to a conference.
One of the schools sent both boys and girls. This school sent 16 boys. The ratio of the number of boys it sent to the number of girls it sent was 1 : 2
The other 4 schools sent only girls.
Each of the 5 schools sent the same number of students.
Work out the total number of students sent to the conference by these 5 schools.

10. Grade C Questions
Answers & Working Out
Pat and Julie share some money in the ratio 2 : 5 Julie gets £45 more than Pat.
How much money did Pat get?
Mrs Jennings shares £770 between her two sons, Pete and Tim. She shares the money in the ratio of her sons' ages.
The combined age of her two sons is 66 years. Pete is 6 years younger than Tim.
Work out how much money each son gets. You must show all your working.

11. Miles Kilometres 5 8 ? 20 36 Grade B Questions Answers & Working Out
How do you go about finding the missing numbers in this table?
Can you do it in a different way?
The new model of an MP3 player holds1/6 more music than the previous model.
The previous model holds 5000 tracks. How many tracks does the new model hold?
The previous model cost £ and the new model costs £
Is this less than or greater than the proportional change to the number of tracks? Explain your answer.
Miles
Kilometres 5 8 ? 20 36

12. B grade
4 people can paint a fence in 3 hours.
How long will it take 16 people to paint it?
(Assume everyone works at the same rate.)
A grade
T is inversely proportional to d2
T = 160 when d = 8
Find the value of T when d = 0.5
y is directly proportional to x.
When x = 600, y = 10
(a) Find a formula for y in terms of x.
(b) Calculate the value of y when x = 540
h is inversely proportional to the square of r.
When r = 5, h = 3.4
Find the value of h when r = 8

13. Ratio and Proportion Grade F E D C B A
I can use ratio to compare one amount to another.
I can simplify a ratio.
I can compare prices of products to find the ‘best buy.’
I can divide an amount into a given ratio.
I can solve problems using ratio in appropriate situations .
I can solve direct proportion
problems.
I can find formulae describing direct or inverse proportion and use them to solve problems.
Use the learning journey above to highlight the mathematical skills that you think you have learnt in this unit of work.

14. My teachers probing question My answer
What I will do to act upon my ‘Even Better If’’ comment
Strategy
Tick / Comments
Complete a mymaths lesson or booster pack
Use a revision guide or text book
Ask my teacher to explain during a lesson
Ask a peer to explain during a lesson
Ask someone at home to help
Attend a revision session at school
Attend homework club
Something else (describe your strategy here)
Dialogue marking sheet.