The Money Book

The forest animals helped the squirrels put the coins in a clearing on the forest floor. Sir Oliver, who had visited the city, understood how to count human coins, also called currency, and agreed to help determine the coins’ value. Sir Oliver explained that they had to sort all the coins into separate groups of the same kind of coin. The animals quickly began, looking at each piece of currency and placing it in a matching pile of coins. As they worked, Sir Oliver told them that the coins with same name had the same value. When the animals finished sorting, they had four groups of coins.
The squirrels were very anxious to know the names and values of the copper-colored coins. They looked at the writing on the copper-colored coins and found the words "one cent." “Sir. Oliver,” the squirrels squealed, "Are these copper-colored coins worth one cent?" Sir Oliver smiled and said, "Yes, you are very observant. The value of the coin is one cent, but the name of the coin is penny."
The mice examined a different group of coins and wanted to know the name and value of their coins. A mouse scurried to Sir Oliver with a coin and proudly showed him that this piece of currency had the words five cents stamped on it.
“Sir Oliver, is this silver looking coin worth five cents?" the mouse asked. "Yes," said Sir Oliver, "you are right. You are also an excellent observer. Your coin's value is five cents and the name of the coin is "nickel.” They shouted, "We have nickels, and each nickel is worth five cents! We must be very rich!"