**TPO51-L2 **

**The The Transmission of A Number System**

##### Listen to part of a lecture in a world history class.

**What does the professor mainly discuss?**

- A. The advantages and disadvantages of the Roman numeral system
- B. The importance of the number zero in tracking commercial transactions
- C. How a new number system affected trade
- D. How a number system spread from one society to another

**What does the professor imply about the record-keeping methods used by early Western Europeans?**

- A. They led directly to advances in basic engineering.
- B. They required an understanding of elementary algebra.
- C. They did not require a counting system that included the number zero.
- D. They were more sophisticated than those used in the Middle East.

**What role did the Italian mathematician Fibonacci play in the example of cultural diffusion that the professor describes?**

- A. He introduced a text in Europe that he had translated from Arabic.
- B. He was the first to use the number zero in higher-level mathematics.
- C. He encouraged the use of a new number system in tracking grain production.
- D. He translated an Italian text into Arabic during his travels through the Middle East.

**What is the professor’s opinion about the effects of the new number system on European society?**

- A. Its most important effects were on merchants and tradespeople.
- B. It had little impact on daily life.
- C. It affected engineers more than other scientists.
- D. It quickly caused most people’s lives to change radically.

**Why does the professor mention domes in architecture?**

- A. To point out a style of architecture that was not spread by traveling merchants
- B. To emphasize that the speed at which cultural diffusion occurs can vary widely
- C. To give an example of a type of engineering that is only possible with the use of zero
- D. To explain that domes were invented in Asia but were more popular in Rome

**What can be inferred about the professor when she says this: 🎧**

- A. She wants the students to appreciate the mathematical significance of the Fibonacci sequence.
- B. She believes that Fibonacci’s contributions to mathematics were unoriginal.
- C. She is impressed by the breadth of Fibonacci’s genius.
- D. She is surprised at the reason that Fibonacci is primarily remembered today.