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Chapter 2 Fractions Part 1

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1 Chapter 2 Fractions Part 1

2 Day….. 1 – GCF and LCM 2 – Adding and Subtracting Fractions 3 –Multiplying Fractions 4 – Multiplying Fractions 5- Review and Reflect

3 Day 1

4 Bell Work Vocabulary List

5 Vocabulary Denominator- the bottom number of a fraction (the whole)
Equivalent- equal or the same Fraction- a number that represents part of a whole or part of a set Factors- two or more numbers multiplied to form a product Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction who’s numerator greater than or equal to the denominator Least Common Multiple- The smallest multiple of two or more numbers Mixed Number- a number that has a whole number part and a fraction part Multiple- The product of a number and any whole number (Think: skip counting) Numerator- the top number of a fraction (the part) Prime Number- a number who's factors are only 1 and it’s self Product- the answer to a multiplication equation Scaling- to increase or decrease a ratio Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

6 Determine the GCF and LCM for a given number set.
I Can…. Determine the GCF and LCM for a given number set.

7 Greatest Common Factor
Essential Understanding: To determine the greatest common factor of any number set, compare the prime factorization of each number in the given set. Think: Factor Tree Example: What is the greatest common factor for the given set. 12, 42, 72, 90 Quick Check: Page- 11 Questions- b, c, and d

8 Least Common Multiple Essential Understanding:
There are two ways to determine the LCM of any given number set. 1) Create a list of multiples for each number given. Example: 2) Multiply the prime factors of each number. (each factor is used once) Think: Skip Counting Quick Check: Page Questions- e, f, and g

9 Whole Class Game The Final Countdown Directions:
Students will be divided into 6 groups. One player from each group will compete to against other players to determine the GCF or LCM for a given number set. The first player with the correct answer will be be rewarded 1 point for that round. The team with the most points at the end of the game wins!

10 Wrap it Up Review Questions Station Work

11 Day 2

12 Vocabulary Denominator- the bottom number of a fraction (the whole)
Equivalent- equal or the same Fraction- a number that represents part of a whole or part of a set Factors- two or more numbers multiplied to form a product Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction who’s numerator greater than or equal to the denominator Least Common Multiple- The smallest multiple of two or more numbers Mixed Number- a number that has a whole number part and a fraction part Multiple- The product of a number and any whole number (Think: skip counting) Numerator- the top number of a fraction (the part) Prime Number- a number who's factors are only 1 and it’s self Product- the answer to a multiplication equation Scaling- to increase or decrease a ratio Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

13 Bell Work Scarlett planted rose bushes around her porch. She measured the growth on the plants each week for 4 weeks. The results are shown in the table below. 1) How tall was Scarlett’s plant after 2 weeks? After 3 weeks? After 4 weeks? 2) Suppose Scarlett’s porch is only 3’ tall. How much more can the plants grow before they will need to be trimmed? Week Plant Height 1 4 ½ inches 2 3 ¼ inches 3 6 ¾ inches 4 5 inches

14 add and subtract fractions.
I Can…. add and subtract fractions.

15 Add and Subtract Fractions
Essential Understanding: To find the sum or difference of fractions, you must first identify a common denominator. Remember to scale both fractions up or down until you reach the LCM. Once all fractions have a common denominator, you can simply add or subtract the numerators (the denominator will stay the same). Simplify when possible. Examples: Quick Check: Page 14 Questions- a, b, c, and d

16 Group Work Activities 1) Fraction War
Explore Group Work Activities 1) Fraction War

17 Wrap it Up Review Questions Station Work

18 Day 3

19 Bell Work Kelly makes $80 a week babysitting. Each week she deposits 3 5 of her earnings into a savings account. How much money does she put into the account each week? Justify your answer. Kelly is saving her money to buy a prom dress. The dress she has picked out will cost her $400. She estimates she will have enough money, after 6 weeks of saving. Is she correct? Why or Why not? How many weeks will she need to save, before she can purchase the dress?

20 Vocabulary Denominator- the bottom number of a fraction (the whole)
Equivalent- equal or the same Fraction- a number that represents part of a whole or part of a set Factors- two or more numbers multiplied to form a product Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction who’s numerator greater than or equal to the denominator Least Common Multiple- The smallest multiple of two or more numbers Mixed Number- a number that has a whole number part and a fraction part Multiple- The product of a number and any whole number (Think: skip counting) Numerator- the top number of a fraction (the part) Prime Number- a number who's factors are only 1 and it’s self Product- the answer to a multiplication equation Scaling- to increase or decrease a ratio Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

21 I Can…. Multiply fractions.

22 Multiplying Fractions
Essential Understanding: To multiply fractions by fractions, you simply multiply numerator by numerator, then denominator by denominator (straight across).Write the product in simplest form. Examples: Quick Check: Complete problems 1-6 on page 104

23 Multiplying Fractions and Whole Numbers
Essential Understanding: To multiply a fraction by a whole number, begin by converting the whole number to an improper fraction by placing a 1 as it’s denominator. Then simply multiply numerator by numerator and denominator by denominator (straight across). Write the product in simplest form. Examples: Quick Check: Complete problems a-g on page 98-99

24 Work Activities 1) Brains and Hands
Explore Work Activities 1) Brains and Hands

25 Wrap it Up Review Questions Station Work

26 Day 4

27 Let’s change this problem:
Bell Work There are 150 students in the band and 90 students in the chorus. ½ of the band members and 4/5 of the chorus members participated in a charity concert. Which group hand more participates? How many more? Let’s change this problem: How many members would the chorus need to have more participants than the band?

28 Vocabulary Denominator- the bottom number of a fraction (the whole)
Equivalent- equal or the same Fraction- a number that represents part of a whole or part of a set Factors- two or more numbers multiplied to form a product Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction who’s numerator greater than or equal to the denominator Least Common Multiple- The smallest multiple of two or more numbers Mixed Number- a number that has a whole number part and a fraction part Multiple- The product of a number and any whole number (Think: skip counting) Numerator- the top number of a fraction (the part) Prime Number- a number who's factors are only 1 and it’s self Product- the answer to a multiplication equation Scaling- to increase or decrease a ratio Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

29 Multiply fractions by mixed numbers.
I Can…. Multiply fractions by mixed numbers.

30 Multiplying Fractions and Mixed Numbers
Essential Understanding: To find the product of fractions and mixed numbers, begin by converting the mixed number to and improper fraction. This is done by adding the numerator to the product of the denominator and whole number. (leave room for example). Example: Next simply multiple numerator by numerator and denominator by denominator (straight across). Finally write the product in simplest form. Quick Check: Complete problems 8-13 on page 114

31 Day 5

32 Bell Work Silent Study

33 Vocabulary Denominator- the bottom number of a fraction (the whole)
Equivalent- equal or the same Fraction- a number that represents part of a whole or part of a set Factors- two or more numbers multiplied to form a product Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction who’s numerator greater than or equal to the denominator Least Common Multiple- The smallest multiple of two or more numbers Mixed Number- a number that has a whole number part and a fraction part Multiple- The product of a number and any whole number (Think: skip counting) Numerator- the top number of a fraction (the part) Prime Number- a number who's factors are only 1 and it’s self Product- the answer to a multiplication equation Scaling- to increase or decrease a ratio Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

34 I Can…. Show what I know.

35 Please clear your desk of everything except a pencil.
Quiz Please clear your desk of everything except a pencil.

36 Individual Work Activity Create a story problem project
Explore Individual Work Activity Create a story problem project

37 Wrap it Up Review Questions Station Work


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