The formal education of the Aztecs was to train and teach young boys how to function in their society as warriors. The Aztecs had no standing army, so every boy not of noble birth was trained to become a warrior. All boys who were between the ages of ten and twenty years old would attend one of the two schools. These two schools were the Telpochcalli (the neighborhood school for commoners) and the Calmecac, the exclusive school for nobles. At the Telpochcalli students would learn the art of warfare, and would become warriors. At the Calmecac students would be trained to become military leaders, priests, government officials, etc. Trades such as farming and artisan skills were not taught at these schools.