1. Which ones are you using?
Creative Thinker
Effective Participator
Independent Enquirer
Reflective Learner
Self Manager
Team Worker
Which ones are you using?
PLT Skills
LESSON OBJECTIVES
We are learning to:
Finding connections between different words. (Which PLT skills?)
Accurately calculate with ratios when only one part of the information is known. (Grade C)
Always aim high!
Where are we in our journey?
Real life cross/curricular links?
AUTHOR

2. Which ones are you using?
Creative Thinker
Effective Participator
BRAIN IN GEAR
Independent Enquirer
Reflective Learner
Self Manager
Team Worker
PLT Skills
Which ones are you using?
EXAMPLE
DITDIONA can be rearranged to make ADDITION
TASK
Work out the following Mathematical anagrams:
SLIME
PUTIN
TOOR
Miles
Input
Root
EXTENSION
As a creative thinker, develop your own Mathematical anagrams as above. 2

3. Which ones are you using?
Creative Thinker
Effective Participator
STARTER
Independent Enquirer
Reflective Learner
Self Manager
Team Worker
PLT Skills
Which ones are you using?
TASK 1) 1 4 ÷ 2 5 2)
Write as a single power:
9 x 9 3)
Write as a single power:
3 ÷ 3 4)
Find:
10% of £92 -2 7 -4 5 5) 3 8 6)
Find 80% of 20km 7)
Write 0.1 as a percentage
of £32
EXTENSION
Expand and simplify:
4t(t + 3) – 2t(t – 5)
= t + 12t 2 -
2t + 10t 2
= t + 22t 2 3

4. Which ones are you using?
Creative Thinker
Effective Participator
Independent Enquirer
Reflective Learner
Self Manager
Team Worker
Which ones are you using?
CALCULATING WITH RATIO
PLT Skills
EXAMPLES
(a)
A fruit drink is made by mixing lemon squash with water in the ratio 4:5. How much water needs to be added to 28cl of lemon squash to make the drink?
SQUASH : WATER 4 : 5
x 7
x 7
28cl :
35cl ?
Therefore, 35cl of water needs to be added to make the drink.
(b)
To make Squirrel Grey paint, you need to mix Snow White and Beetle Black together in a ratio of 3:2. How much Snow White will you need if you’re using 18 litres of Beetle Black?
WHITE : BLACK 3 2 :
x 9
x 9
27litres ? :
18litres
Therefore, 27litres of Snow White needs to be mixed to make Squirrel Grey. 4

5. Which ones are you using?
Creative Thinker
Effective Participator
Independent Enquirer
Reflective Learner
Self Manager
Team Worker
Which ones are you using?
CALCULATING WITH RATIO
PLT Skills
TASK 1 (GRADE C)
EXTENSION (GRADE C)
1) In a room, the ratio of men to women is 4:1. If there are 20 men, how many women are there?
2) In a box, the ratio of nails to screws is 5:3. If there are 15 nails, how many screws are there?
3) An alloy consists of copper, zinc and tin in the ratios 1:3:4. If there is 10g of copper in the alloy, find the weights of zinc and tin.
4) In a shop the ratio of oranges to apples is 2:5. If there are 60 apples, how many oranges are there?
5) In a train the ratio of adults to children is 7:2. If there are 126 adults, how many children are there?
1) The ratio of male to female spectators at ice hockey games is 4 : 5. At the Steelers’ last match, 4500 men watched the match. What was the total attendance at the game?
2) A teacher always arranged the content of each of his lessons to Year 10 as ‘teaching’ and ‘practising learnt skills’ in the ratio 2 : 3.
a) If a lesson lasted 35 minutes, how much teaching would he do?
b) If he decided to teach for 30 minutes, how long would the lesson be?
3) A ‘good’ children’s book is supposed to have pictures and text in the ratio 17 : 8. In a book I have just looked at, the pictures occupy 23 pages.
a) Approximately how many pages of text should this book have to be deemed a ‘good’
children’s book?
b) What percentage of a ‘good’ children’s book will be text? 5

6. Which ones are you using?
Creative Thinker
Effective Participator
Independent Enquirer
Reflective Learner
Self Manager
Team Worker
Which ones are you using?
RATIO OF AMOUNTS
PLT Skills
MINI-PLENARY
The ratio of female to male members of a tennis club is 3 : 8. The total number of females in the club is 51. How many members are male?
FEMALE : MALE 3 : 8
x 17
x 17 51 :
136 ?
Therefore, 136 members of the tennis club are male. 6

7. Which ones are you using?
Creative Thinker
Effective Participator
DISCOVERY
Independent Enquirer
Reflective Learner
Self Manager
Team Worker
PLT Skills
Which ones are you using?
LINK BACK TO OBJECTIVES
Accurately calculate with ratios when only one part of the information is known.
What grade are we working at? 7

8. TRUE FALSE PLENARY ACTIVITY
In a room, the ratio of men to women is 7:2. If there are 42 men, there are 12 women.
TRUE
FALSE
Stand Up
Remain Seated

9. TRUE FALSE PLENARY ACTIVITY
In a box, the ratio of nails to screws is 8:5. If there are 16 screws, there are 10 nails?
TRUE
FALSE
Stand Up
Remain Seated

10. TRUE FALSE PLENARY ACTIVITY
An alloy consists of copper, zinc and tin in the ratios 2:3:5. If there is 20g of copper, there are 30g of tin and 50g of zinc.
TRUE
FALSE
Stand Up
Remain Seated

11. Where are we in our journey? What grade are we working at?
What have you learnt?
Draw your brain
In your brain, write or draw everything you can remember about calculating with ratios when only one part of the information is known. It can be a skill or a reflection, or something else that might be prominent in your brain.
Where are we in our journey?
What grade are we working at?

12. Creative Entrepreneur
Positive Thinker
Creative Entrepreneur
SELF ASSESSMENT
Independent Learner
Reflective Learner
Responsible Citizen
Team Worker
Enterprise Skills
Which ones are you using?
Plenary Activity
How well do you understand the task? .
I don’t understand
I nearly understand
I fully understand

13. Creative Entrepreneur
Positive Thinker
Creative Entrepreneur
SELF ASSESSMENT
Independent Learner
Reflective Learner
Responsible Citizen
Team Worker
Enterprise Skills
Which ones are you using?
Plenary Activity
WWW (What Went Well)
EBI (Even Better If)
On your post it notes…
Think about how you can improve your work.