1. Welcome

3. Level 2

4. What we are doing this week…
Using ratio

5. How is ratio written?
4 : 1
This ratio has 5 parts altogether as = 5.
This will be important a bit later on!

9. Which can be simplified to:
Simplifying Ratios
The ratio of blue to yellow blocks is
blue : yellow = 4 : 2
Which can be simplified to:
4 : 2 ÷2 ÷2
2 : 1

10. Share €10 between Mandy and Lara in the ratio 3 : 2
Number of equal parts = = 5 2 2 2 2 2 2 2 2 2 2
Amount in 1 part = 10 ÷ 5 = € 2
Mandy gets = € 2  3 = € 6
Lara gets = € 2  2 = € 4

11. Number of equal parts = 4 + 3 = 7
A 35 ml orange drink is made by mixing orange juice and water in the ratio 4 : 3.
Number of equal parts = = 7 5 5 5 5 5 5 5 5 5 5 5 5 5 5
Amount in 1 part = 35 ÷ 7 = 5 ml
Orange Juice = 5  4 = 20 ml
Water = 5  3 = 15 ml

12. Share £120 in the given ratios
Sharing ratio
Share £120 in the given ratios
Extensions
Calculate the fractional proportion each ratio part is
Calculate the percentage proportion each ratio part is

13. Applying skills
Apply a technique you feel most comfortable with to answer questions. To get good at maths you must do maths!!

14. Can you apply skills to find ratio parts?
Back to targets
Can you apply skills to find ratio parts?