In this server, I spawned right next to a village. In the village, there are villagers who you can trade with. This aspect of the game could be used in an Econ class to teach the students about using and saving currency.
The villagers trade items for emeralds.Here I built a sword, as we saw before, and collected wool because one of the villagers here wanted to trade some wool for an emerald.
Emeralds are basically used as currency in the game.
By collecting tons of items, you can collect more and more emeralds until you can trade for more valuable items.
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