Here's a great infographic from Savings.com which you could use to practise describing trends and data.
LESSON IDEA
1. Print out the infographic (in colour if possible) and cut it up into four separate charts.
2. Put students into groups of four and give each one a chart to present to the others.
3. Get volunteers to come and present their chart to the whole class (using these PowerPoint slides on a videoprojector, if possible).
