Number and Operations Session 2: Number Sets, Infinity, and Zero

In Session 1, you began to examine the structure of the real number system. You explored some of the elements, operations, and laws that governed this system. You then looked at the number line and discussed the concept of density. In this session, you will continue your exploration of the number sets that make up the real number system and look more closely at the concept of infinity and the importance of zero.

Part A:
Number Sets

Part B:
The Size of Infinity

Part C:
Examining Zero

Homework

In this session, you will do the following:
•	Analyze the number line and the relationships among the different sets of numbers in the real number system
•	Understand different sizes of infinity
•	Understand the unique qualities of zero
•	Understand the behavior of a positional number system
•	Understand the behavior of zero in multiplication and division
•	Explore infinity and zero in the context of a graph of an equation


	Throughout the session you will be prompted to view short video segments. In addition to these excerpts, you may choose to watch the full-length video of this session.


	Previously Introduced:		New in This Session:
	algebraic numbers complex numbers counting numbers integers irrational numbers pure imaginary numbers rational numbers real numbers transcendental numbers whole numbers		countably infinite set infinite set uncountably infinite set

Next > Part A: Number Sets

Session 2: Index | Notes | Solutions | Video