When I taught geography one of the first topics that I covered was map projections and how some of them can distort how we view the world. Of course, a good bit of attention was paid to the Mercator projection. Mercator’s world map is one of a handful featured in a new TED-Ed lesson titled
The Biggest Mistakes in Mapmaking History. 

The Biggest Mistakes in Mapmaking History provides students with a good, basic explanation of how cartography evolved. Most importantly the video explains why early maps of the world had so many inaccuracies including labeling some maps with things like “here be dragons.” Watch the lesson and read the accompanying questions here. 

If you’re interested in learning how to incorporate tools like Google Maps and Google Earth into your history lessons, join me in June for Teaching History With Technology.