Final answer:
Traditionally, tortillas made for tacos in Mexico are crafted from ground corn, turned into flour, and then formed into batter. They are a material artifact of Mexican culinary tradition.
Step-by-step explanation:
The kind of tortillas used for tacos can vary, but traditionally in Mexico, tortillas are made from corn. This is evident from observing the method employed in creating tortillas as seen in Puerto Vallarta, Mexico, where a woman uses a metate (a large, flat stone) and a mano (a smaller stone) to grind dried corn into flour.
This flour is then used to create the batter for tortillas, which are a staple in Mexican cuisine and a material artifact of Mexico’s rich culinary history.