1. books WARM-uP Lesson 1 Independent work Exit card
Agenda
books
WARM-uP
Lesson 1
Independent work
Exit card

2. Warm-up Write the fraction as a decimal. 1. 4 3 8
Write the fraction as a decimal.
Write the decimal as a fraction in simplest form.

3. Lesson 1: Classifying real numbers
Set: a collection of objects. Each object is called an element.
Finite Set
Infinite Set
Null or Empty Set

4. Subsets of real numbers
Natural Numbers a.k.a. “Counting Numbers”
Whole Numbers
Integers
Rational Numbers
Irrational Numbers
Real Numbers

5. For each number, identify the subsets of real numbers to which each number belongs. Ex: 9 Ex: 5 𝟑 Ex: 𝟏 𝟒

6. Intersection of Sets
Intersection of Sets A and B  written A∩B *the set of elements that A and B have in common Ex: Find A∩B A = {4, 8, 12, 16} B = {5, 8, 11, 14, 17}

7. Union of sets
Union of Sets A and B written AUB *The set of elements that are in A or B Ex: Find AUB A = {1, 3, 5, 7, 9} B = {1, 2, 3, 4}

8. Determine whether the statement is true or false
Determine whether the statement is true or false. Give a counterexample for false statements. Ex: The set of natural numbers is closed under subtraction. Ex: The set of integers is closed under addition.

9. Complete the Exit Card (Be sure name is on it)
2. Begin Lesson 1 Homework: Page 5: A – J, #1 – 5 All Due Monday