Exactly...That's why he picked the Mexican and Chinese flags to display.
Part of the study of geography is the inclusion of different aspects of each country, one of them being the flag. If I had a room dedicated to the study of geography, you can bet your Stars and Stripes I'd have flags displayed from each of the countries we were studying...year round. However, they would be around the room, the American flag would hang front and center.
This is stupid! The principle needs an education.