Ratio and proportion
Why this, why now
In this unit pupils will describe the relationship between two factors, representing the relationship in different ways. They will build to using a ratio grid to calculate unknown values.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 17 / 21
Ratio and proportion
In this unit pupils will describe the relationship between two factors, representing the relationship in different ways. They will build to using a ratio grid to calculate unknown values.
10 lessons- Identify and describe the relationship between regular polygons using scale factors
- Use knowledge of multiplication and division to solve scaling problems in a range of contexts
- Explain how to represent ratio and to calculate unknown values
- Identify and describe the relationship between irregular polygons using scale factors
- Use multiplication and division to calculate unknown values in ratio problems
- Solve problems involving ratio
- Solve problems involving scaling and ratio
- Explain how and why scaling is used to make and interpret maps
- Describe the relationship between two factors in a ratio context
- Representing ratio in different ways