2. Chapter 3, Lesson 1C Pages 133-138

3. Learning Objectives and Vocab.  Learning Objective #2: I can compare and order rational numbers. ○ Standard: found in grade 6 CCSS  Vocabulary: Rational numbers Common denominator Least common denominator (LCD)

5. Rational Numbers  A rational number is a number that can be expressed as a ratio of two integers.  Examples: Fractions, terminating decimals, repeating decimals, percents, and integers are all rational numbers.

6. Compare and Order  What does it mean to compare numbers? What symbols are used to compare?  What does it mean to order a set of numbers?

7. Comparing/Ordering Fractions  Can we compare 3/7 and 5/12?  When comparing and ordering fractions we need to have common denominators. You can use the least common denominator, or LCD, which is the least common multiple of the denominators.  After finding a common denominator, we need to make equivalent fractions.

8. Comparing Fractions

9.  You can also turn fractions into decimals and compare decimals…

10. Rational Numbers  Are all numbers rational numbers? Nonterminating, nonrepeating decimals are called irrational numbers. ○ En example of an irrational number is pi,, which is the ratio of a circle’s circumference to its diameter. ○ pi = 3.14159265358979323846264338327950288419 7169399375105820974944592307816406286208 99862803482534211706798214808651…

11. Ordering Rational Numbers

12. Key Concept

13. Homework