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

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

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

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

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?