A reciprocal is the multiplicative inverse of any non-zero number. Any non-zero number multiplied by its reciprocal is equal to 1

Checking and securing understanding of equivalent ratios

Maths

Checking and securing understanding of simplifying and unitising ratios

Checking and securing understanding of sharing in a ratio

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

Equivalent ratios are ratios which represent the same {{ }}

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.

Select the ratio which is **not** equivalent to 1 : 5

What is the ratio of triangles to circles in its simplest form?

Select the ratio of shaded to unshaded squares written in its simplest form.

Write the ratio 18 : 12 in its simplest form

Write the ratio of triangles to circles in the form $$1 : n$$ where $$n$$ is a decimal.

A recipe uses 240 g of flour and 3 eggs. Write the ratio of number of eggs : grams flour in the form 1 : $$n$$

Checking and securing understanding of equivalent ratios

Lesson outcome