Sample Template:

• The number of + [variable] + [increased/decreased] + by + [percentage/amount] + between + [year] + and + [year], reaching a total of + [final number].

Explanation of Usage:

This structure is essential for describing trends that show changes over time, either increasing or decreasing. It is useful when presenting data from line graphs, bar charts, or tables that demonstrate growth or decline over a specific time frame. The structure focuses on the magnitude of change, whether it’s a percentage or a numerical difference.

How to Use in IELTS Academic Writing Task 1:

In IELTS Writing Task 1, you’ll often encounter data sets that illustrate changes over time, such as population growth, sales figures, or energy consumption. This structure allows you to effectively communicate how much a variable has risen or fallen over a certain period. The ability to present these changes with accuracy is vital for achieving a high band score.

Example from IELTS Academic Writing Task 1:

The number of university graduates in the UK increased by 15% between 2015 and 2020, reaching a total of 1.5 million graduates by the end of the period. 

In this example, the structure clearly presents the upward trend in the number of graduates and provides specific details on the percentage increase and total count.