Last Updated on July 26, 2020 by Alabi M. S.
SMASE – ASEI PDSI METHOD
TOPIC – RATIO
Lesson One – Introduction to Ratio
Lesson Two – Simplifying a ratio in its lowest form
Lesson Three – Word problems on Ratio
Revision and Test
TIME – 40 Minutes each.
By the end of the lesson, pupils should be able to:
1. recognise the idea of ratio.
2. solve problems on ratio.
3. apply ratio to everyday life.
4. solve quantitative reasoning problem involving ratio.
Ratio is used to compare two or more things together. That’s how much of one thing there is compared to another. Everyone wants the best values and quality, they want to maximize their available resources with unavailable resources or minimise cost for profit maximisation.
The concept of ratio will enable the pupils to understand, appreciate and apply ratio to everyday life.
The teacher will teach the lesson with the aid of –
1. population chart – total number of boys and girls in the classroom.
2. flashcards or related charts
Sharing or comparing things or values are part of everyday life. Everybody wants the best, and the children are not exceptional in this regard.
9 – Years Basic Education Curriculum
Lagos State Scheme of work
New Method Mathematics Book
All Relevant Materials
ASEI PDSI LESSON NOTES
LESSON DEVELOPMENT 1 – Introduction to Ratio docx
LESSON DEVELOPMENT 2 – Ratio in Its Lowest Form docx
LESSON DEVELOPMENT 3 – Applications of Ratio docx
LESSON DEVELOPMENT 4 – REVISION AND TEST/QUANTITATIVE REASONING
Share a bag of 200 onions among some groups of women in these ratios.
1. 8 : 12
2. 15 : 5
3. 12 : 8
4. 2 : 8
In a small town there live 26 men, 44 women, 14 boys and 16 girls. In this town. Write down the value of these ratios.
5. men : people
6. women : people
7. people : boys
8. people : girls
Find the values of the letters in these ratios.
9. 2 : 5 = 18 : a
10. 4 : 5 = b : 30