For teachers who look into the topis of inequality, we have a tip to use in your classroom: http://inequality.is/. It is an interactive animation, where you can find out in a very attractive way, that inequality is real, personal, expensive, created and fixable. At the very end, you have few possible solutions how to decrease inequality. It is all explained on the example of United States, but some parts apply to all other regions, including Europe.
You can use it as an introduction to your inequality lesson, to spur attention or to make the topic more personal to students.