Interpret conversion graphs
Home learning focus
Learn how to interpret conversion graphs and practise using them to convert between different measurements, such as currencies.
This lesson includes:
- 1 video
- a learning summary
- 2 activities with answers
Created in partnership with Sparx
Conversion graphs show us how two different units are related to each other, for example two types of currency. You could also use them to work out the relationship between different types of weight, temperature or length.
Look at this example of a graph that we could use to convert between two different currencies - Euros (€) and British pounds (£).
Imagine you wanted to convert £20 into Euros. You can use the conversion graph to do this easily.
1. Find £20 on the British pounds axis.
2. Read up to find where it meets the diagonal conversion line.
3. Read across to the Euro axis to find the converted value.
From the graph you can see that £20 converts into €22.50.
Watch this video from Sparx to learn more about solving different problems using conversion graphs. To see a short recap and further example of the learning points you have covered so far, watch the video from the beginning. If you are ready to carry on and progress your learning, begin watching at 1:25.
Please pause the video as needed, so you can stop and work out the different problems for yourself.
Currency conversions, exchange rates and other measurements
To put what you have learned into action, have a go at this set of questions from Sparx and test your knowledge on interpreting conversion graphs using different forms of measurement. Write your answers on a piece of paper.
MyMaths - creating and interpreting conversion graphs
Go further - try this interactive activity from Oxford University Press where you can have a go at creating and interpreting conversion graphs using different forms of measurement. Select a chapter to work on and click 'Next' each time as you complete the various tasks. You can mark your answers within the activity.
There's more to learn
Have a look at these other resources around the BBC and the web.