The language to compare two pie charts 

Summarising two pie charts for an IELTS Academic Task 1 needs careful preparation. Here, I am going to focus on deciding the language we need to do this because if we use the correct language, then we have a good chance to obtain a high band score.

Now we need to handle the language of percentages and proportions and, of course, the language we need will vary according to the topic and content of the pie charts. That is one reason why it is vital to study the title and any sub-headings of the charts.   

Pie chart review

Take this example and decide what type of language we will need to describe it.

Naturally we need in the first place language to describe proportions. Some key words are:

* per cent (correctly spelled as two words)* percentage* proportion* amount* share

At the same time, we must be able to use language of comparison – to say which country had the largest and smallest share etc. Some key words here are:

* most/least* largest/smallest* more/less* greater/smaller

Two pie charts: related topics, one time frame

Usually, Task 1 will not be just one pie chart to describe but two or maybe more. This might involve two pie charts related in terms of “opposition” but static in the sense that both refer to the same time frame, normally a year. Look at the following which present for the year 2108 the principal European Union trade partners in terms of food and drink: the first chart concerns export partners and the second, import.

In this case, what kind of language do we need?

Of course, we still need the same language of proportion and comparison.

The major difference is the need to make comparisons between the two pie charts comparing exports with imports, making the task more complex.

Two pie charts: one topic only at  different times

Source

Now look at these pie charts. There are of course similarities with the first set. We will always need language to describe proportions and to compare items.

This set refers to agricultural exports from the USA to Cuba in 2005 and then in 2014. In other words, we have just one topic shown over time.

Therefore, we need to use language describing change and trends.

This may be more complex because we have to handle all of the following:

proportion language – to describe percentages

comparison language – to describe the biggest and the smallest

trend language – to describe what changes over time

Overview

* two pie charts on a different topic and the same time frame ⇒ language of proportion and comparison* two pie charts on a related topic and in a different time frame ⇒ language of proportion and comparison and change

Practical advice

* Do not start writing before giving yourself enough time to think. First decide the language you will need in your answer. Give yourself 5 minutes to look, think and plan.* Study the charts carefully: the titles for example to check if they deal with the same or connected topics.* Check the time frames very carefully in the charts and plan how time differences will affect y...