As geography, it is fairly simple to understand. The logical place for such a school was the center of the land, in the Aztec Altiplano. But one must consider higher education as part of the Meso-American tradition simply because both their mathematics and astronomy are accurate enough to compete with our computerized systems today. A strong education base had to be part of their cultural background. The priesthood and their school called the Calamec was thought to be the only school system available.
Women wove cloth.
With the serpent and the spindle together in the headdress, it is saying that this is the woman who does the weaving for the serpent. The fact that the woman has the eyes of an astronomer tells us that there is a school of astronomy in the area where the weaving occurs. The picture above this goddess weaver-lady shows the fire serpent who returned to the skies, the flaming star with a great cutting knife, and the split head god. We have a lot to learn about the culture of the Meso-American world and although religion was a major part of their world, there were many other elements of learning that they appreciated and used. Their pictures are strange to us, but the symbols can be translated into any language of the world without losing the concepts behind them.