1. Do Now (Today: Sort numbers into number sets)
Give an example of:
A counting number
An integer
An irrational number
A real number

2. Number Sets N = {0, 1, 2, 3, 4, …} natural numbers
Z = {…, -2, -1, 0, 1, 2, …} integers
Z+ = {1, 2, 3, 4, 5, …} positive integers
Z-- = {…, -4, -3, -2, -1} negative integers
Q = {numbers that can be written as fractions} rational numbers
R = {real numbers} real numbers

3. Give an example of An integer that is not a natural number
A rational number that is not an integer
A rational number that is an integer
An integer that is not positive or negative
A real number that is not rational (an irrational number)
Another irrational number
A number that is not real

4. Check Which number set is the “smallest”?
Which number set is the “largest”?
Let’s make a Venn Diagram

5. Exit Ticket Give an example of:
A rational number that is not a natural number
A real number that is not rational
A number in N that is not in Z+
What two number sets have the same elements?