- Mining Gold
- Mining Lead
- Mining Silver
- Mining Iron
- Hunting Scavenger Hunt
- Materials Scavenger Hunt
- Chinese Coins
- Egyptian Shaduf
- Greek Coins
- Africa Trade Activity
Eyewitness: Money, by Joe Cribb (2000). Not the best in the series, but still a good introduction to exchange systems for kids.
The Roman Empire: Economy, Society and Culture, by Peter Garnsey and Richard Saller (1987). Two experts, but their writing is easy enough for high schoolers.
Economy and Country Life in the Medieval West, by Georges Duby (reprinted
1998). Translated from French. A path-breaking account of what it was
like to be a medieval peasant, though it can be hard to read.