Ratio and Proportion Miss Wood L I To
- Slides: 9
Ratio and Proportion Miss Wood
L. I: To be able to investigate using ratio and proportion, understanding the difference between them. Success Criteria: 0 I can explain the difference between ratio and proportion 0 I can mathematically apply my knowledge of multiplication, division and common factors 0 I can work systematically
Ratio compares part: part In 24 fish there are 6 gold and 18 black This is written as 6: 18 Using the same ratio if there was 1 gold fish there would be 3 black. 1: 3 It’s a bit like simplifying fractions!
Proportion compares part in relation to whole. How many fish are there in total? The proportion of gold fish out of this total is 6. 6 out of 24. 6/24 Simplify this! ¼ What is that as a percentage? As a decimal?
Being systematic 2 4 5 10 6 8 25 1 2 3 4 3 6 9 12
L. I: To be able to investigate using ratio and proportion, understanding the difference between them. Success Criteria: 0 I can explain the difference between ratio and proportion 0 I can mathematically apply my knowledge of multiplication, division and common factors 0 I can work systematically
Who has the bigger hand? The person with the biggest hand is b. Person a – explain how to solve this. Person b then solve it. In a class of 24 pupils, 8 can swim. What is the ratio of those who can swim to those who cannot? Now person b explain how to solve this. Person a then solve it. 10 people asked liked butter, and 5 people did not. What is the proportion of people who did not like butter?
