Simulation games can be very useful in discerning some fundamental principles of economics.  Here we see a simulation in progress:

Here are some piles of money used in the simulation:

The consumer bids for goods in the market:

Some of the goods on the market.  As consumer preferences are revealed through prices, the goods produced change to meet consumer needs.

In another simulation, the government inflates the money supply ...

.... leading to economic dislocation.

Economics mistakes become more real when they bring poverty, even if one has only lost play money.  Our students coped well with repeated crashes and economic disasters, for the sake of learning the principles.