Gapminder is one of my absolute favorite resources to use in class. We developed a project around it (and Dollar Street) for the end of the year when we look at the modern world, but I often finding myself referencing the website when we learn about new events and places just to show the history around the place (ex: how a war, industrialization, political change, etc. can impact the health and wealth of a country). I was just curious to see if other teachers have come up with other creative uses for it? I'm always open to new ideas.