Which Aztec youth school trained commoners for community service and war?

The Aztec youth school that trained commoners for community service and war was the telpochcalli.

Telpochcalli means “house of young men” in Classical Nahuatl. These schools generally served macehualtin, or commoners, and were located in neighborhood districts called calpulli. Boys commonly entered around age 15 and learned discipline, religious songs, practical labor, and military skills.

Training included weapons practice with tools such as the sling and macuahuitl, participation in farming, and carrying materials for temple repairs. The school’s purpose was broader than battlefield preparation: students were being shaped into useful members of their community and expected to contribute labor, tribute, and military service.

A common mix-up is the calmecac, which was associated mainly with the sons of nobles and emphasized priestly, administrative, and elite education. The distinction was social rather than absolute; some noble boys could attend a telpochcalli, and both institutions combined religious instruction with public obligations.