A ratio shows the relative sizes of two or more values and allows you to compare a part with another part in a whole

Checking and securing understanding of sharing in a ratio

Maths

Checking and securing understanding of simplifying and unitising ratios

Checking and securing understanding of equivalent ratios

Checking and securing understanding of converting between ratios, percentages and fractions

Checking and securing understanding of real world ratios

Combining ratios

Changing ratios

Writing equations from ratios

Algebraic ratios

Problem solving with algebraic ratios

In the compound measures unit, pupils will be exploring the multiplicative relationship between different compound measures. Ratio will be one of the ways in which this is explored and the skills from this unit will aid understanding.

The ratio unit will cover comparing fractions, percentages and ratios and being able to move fluently between them. The percentages unit ensured pupils had the opportunity to work with finding the percentage of an amount and the opportunity to calculate interest.

In this unit pupils will learn how to combine ratios, interpret algebraic ratios, and investigate quantity changes and their effect on ratios.

Ratio

Select the ratios that are equivalent to 3 : 8.

Alex and Sofia share some money in the ratio 3 : 5.
They share £360 in total.
How much does Alex get?

Alex and Sofia share some money in the ratio 3 : 5.
Alex gets £360.
How much does Sofia get?

Alex and Sofia share some money in the ratio 3 : 5.
Sofia gets £360.
How much did they share in total?

Alex and Sofia share some money in the ratio 3 : 5.
Sofia gets £360 more than Alex.
How much did Alex get?

Izzy, Laura and Jun share some money in the ratio of 3 : 2 : 7.
Jun gets £60 more than Izzy.
How much does Laura receive?

Select the options that show a ratio written in its simplest form.

Write the single multiplier which connects the two numbers shown. Give your answer as a decimal.

Find the correct value to complete the ratio table.

Match each of the letters to the number they represent in this ratio table.

Alex and Sam share £24 in the ratio 3 : 5 
How much does Alex get?

Checking and securing understanding of sharing in a ratio

Lesson outcome