After I published the very first version of PopulationPyramid.net in 2011, I wrote “My dream is to have a school using it as material for some homework for teenagers. If you know somebody that could be interested…”
This is a copy of the article that I wrote in February 2011 about populationpyramid.net on my personal blog. You can still see the original post on my old blog. The next blog posts will be about how this project evolved since then.