1: The Beginning: Bartering | Bartering was the first form of exchange, dating all the way back to the first humans. Bartering is still used in some cases today by people and the government.
2: After bartering came the trading of cattle and cowrie shells. After those came the first metal money and coins (bronze and copper). Then silver was used. Next came paper money and the gold standard. In the future, digital money is expected to be used.
3: How does the government make money? | The government makes a lot of money from taxes. It comes from individual people, businesses, local governments and state governments. It also comes from taxes on exported and imported goods.
4: To see how money is made, follow the link to this video. | http://videos.howstuffworks.com/howstuffworks/54-how-money-is-made-video.htm
5: What is the money supply? | Another way money can be measured is through things that are similar and also have value, like gold. | The definition of money isn't all that definite. Money is currency but there is also stored money, like electronic bank accounts.
6: How is the money supply controlled? | The Federal Reserve policy is the most important thing in controlling the money supply. | "The Federal Reserve requires banks to hold as reserves a fraction of specified deposit liabilities. In return, the Federal Reserve lends money to financial institutions."
7: Inflation, Scarcity and Devaluation of Money | http://economics.about.com/cs/money/a/print_money.htm | Why can't we just print more money when we need it? If we just printed more money, the value of money would go down because it would be easier for people to get money. Also, people would have more money to spend, so prices would have to rise to meet the increase in money supply. If everyone had more money and no one was losing money, demands would raise when supply was the same, causing inflation.