Do Now A 13.5 oz box of Fruit Loops is $2.70. A 15 oz box of Lucky Charms is $3.20. Which one is cheaper per ounce?

If you scored less than 20/25 on Friday’s quiz, you will do error analysis before starting today’s assignment. On a separate sheet of paper, re-work all missed problems. You may use your notes if you would like. After re-working the problem, explain in detail the mistake that you made. Staple your re-work and explanation to the original quiz and turn it in to the tray. After error analysis, you may begin on Bargain Shopping.

Do Now Donovan has ¾ bag of Skittles. He wants to divide the Skittles evenly into snack bags with 1/12 of the original bag in each snack size bag. How many snack size bags does Donovan need?

DRAW A MODEL OF THE PROBLEM Do Now Jane has 2 ½ pounds of candy to split into ¼-pound bags. How many bags can she make?

DO NOW Jasmine packs large boxes at a warehouse. She works 14 hours each weekend. If it takes her ¾ of an hour to pack a large box, how many boxes can she pack in one weekend?

DO NOW

Glue in the Dividing with Fractions sheet in your MSG on p. 9 Don’t forget to list it in your table of contents. After you glue in the paper, we will take a few notes and work some examples together.

DO NOW 1. A recipe calls for 2/3 of a 16-ounce bag of chocolate chips. How many ounces are needed? 2. Find the error & give the correct answer. 3. Find the error & give the correct answer.

Grab a white board, dry erase marker, and eraser. Get ready to pick-a-ride!!!

1. Please return your white board, eraser, and marker. 2. Get out a sheet of paper for a quick skills check/exit ticket.

THINK PAIR SHARE 1. What does SOAR stand for? 2. What is the reciprocal of 3/8? 3. What is the reciprocal 2? 4. What is the reciprocal of 2 3/5? 5. Which of the following operations do I need common denominators? a) Addition b) Subtraction c) Multiplication d) Division e) A and B only f) All of the above

Please note that tonight’s homework is simply to watch two Learnzillion video clips. This is NOT optional. We will be working in the hall today. You must be quiet so we do not disturb the classes near us. Some of you will be working in the pink group, and others in the blue group. However, you will all be working independently.

DO NOW  Alex can race her bike around a circular track in 18 minutes and Carly can race hers around in 24 minutes. If the girls start at the same time, when will the 2 girls cross the starting line again together? **If you did not turn in your work from the scavenger hunt, please do so

QUESTION

Glue the following in your MSG: Divisibility Rules on page 11 GCF on page 13 LCM on page 15 ***List them in the table of contents

The greatest common factor of two numbers is the largest factor that two numbers have in common. The least common multiple is the smallest multiple that two numbers have in common.

 Two-minute talk:  Turn to your shoulder partner and spend 2 minutes telling each other everything you know about factors, multiples, GCF, and LCM.

Closing/Summary 1. Is 216 divisible by 2, 3, 5, 6, 9, and 10? 2. What is the GCF of 42 and 36? 3. What is the LCM of 2 and 8?

DO NOW A Beautiful Day for a Ride Kasey and Joe were riding bikes on a circular track. It took Kasey 15 minutes to go one mile, and Joe rode the mile in 12 minutes. 1. How many minutes will go by until they see each other again? 2. How many miles will each have traveled once they meet?

LCM AND GCF IN WORD PROBLEMS  Strategies 1. Underline important information 2. Decide if you need to find GCF or LCM 3. Solve

GCF AND LCM PROBLEM SOLVING How can you tell if a word problem requires you to use Greatest Common Factor or Least Common Multiple to solve?

FIND GCF IF WE ARE: ssplitting things into smaller sections.. ffiguring out how many people we can invite given certain quantities of food, etc. aarranging things into rows or groups… aasked to find the GREATEST, LARGEST, MOST, MAXIMUM…. The overall idea is we are DIVIDING—just like factors divide into a number.

FIND LCM IF WE ARE:  Have events that are repeating over and over…  figuring out how much to get of items in different quantities so that we have the same amount  Finding out when 2 or more things will happen at the same time  finding the LEAST, SMALLEST, MINIMUM, etc. The overall idea is we are MUTLIPLYING—just like multiples.

APPLYING WHAT WE HAVE LEARNED… Samantha has two pieces of cloth. One piece is 72 inches wide and the other piece is 90 inches wide. She wants to cut both pieces into strips of equal width that are as wide as possible. How wide should she cut the strips? IS THIS GCF or LCM?.

SAMANTHA HAS TWO PIECES OF CLOTH. ONE PIECE IS 72 INCHES WIDE AND THE OTHER PIECE IS 90 INCHES WIDE. SHE WANTS TO CUT BOTH PIECES INTO STRIPS OF EQUAL WIDTH THAT ARE AS WIDE AS POSSIBLE. HOW WIDE SHOULD SHE CUT THE STRIPS? 1. Underline important information. 2. Decide if we need to find GCF or LCM. 3. Find the GCF of 72 and 90 using one of the 2 methods. THE GCF is 18. Samantha should cut each piece into strips 18 inches long.

APPLYING WHAT WE HAVE LEARNED… BBen exercises every 4 days and Isabel every 6 days. Ben and Isabel both exercised today. How many days will pass before they exercise again?

BEN EXERCISES EVERY 4 DAYS AND ISABEL EVERY 6 DAYS. BEN AND ISABEL BOTH EXERCISED TODAY. HOW MANY DAYS WILL PASS BEFORE THEY EXERCISE AGAIN? 1. Underline important information. 2. Decide if we need to find GCF or LCM. 3. Find the LCM of 4 and 6 using one of the 2 methods. THE LCM is 12. Ben and Isabel will exercise again on the 12 th day.

DO YOU USE GCF OR LCM? SOLVE. Miss Katy has 24 rulers and 60 erasers. She wants to put the same number of each item into ziplock baggies for her students. What is the greatest number of baggies she can make without having any of the items left over? Find the GCF of 24 and 60.

The pink monorail and the green monorail leave the Magic Kingdom at 9:00 a.m. The pink monorail arrives at the Magic Kingdom every 9 minutes. The lime green monorail arrives at the Magic Kingdom every 15 minutes. At what time will both monorails arrive at the Magic Kingdom at the same time? The LCM of 9 and 15 is 45. So at 9:45 a.m. they will both arrive at the Magic Kindgom.

Course 1 Greatst Common Factor Jessie has 12 red flowers and 16 yellow flowers. She wants to make vases with the same number of each color flower in each vase. What is the greatest number of vases she can make? The GCF of 12 and 16 is 4. She can make 4 vases. How many red flowers will be in each vase? 12 flowers divided into 4 vases: 12 / 4 = 3 red flowers in each vase How many yellow flowers will be in each vase? 16 flowers divided into 4 vases: 16 / 4 = 4 yellow flowers in each vase

 Number your paper space like this:  1.  2.  3.  4.  5.  6. When ready, tell whether the following word problems could be solved using GCF or LCM…you do not need to solve.

QUESTION 1 Mrs. Evans has 120 crayons and 30 pieces of paper to give to her students. What is the largest number of students she can have in her class so that each student gets equal number of crayons and equal number of paper.

QUESTION 2 The school cafeteria manager noticed she had a lot of extra pizza and applesauce. If she had 120 pieces of pizza and 48 containers of applesauce, what is the greatest number of students that could equally share the food and there is none leftover?

QUESTION 3  Star 94 gave away a discount coupon for every fifth and sixth caller. Every twentieth caller received free concert tickets. Which caller was first to receive both a coupon and a concert ticket?

QUESTION 4  Two bikers are riding a circular path. The first rider completes a round in 12 minutes. The second rider completes a round in 18 minutes. If they both started at the same place and time and go in the same direction, after how many minutes will they meet again at the starting point?

QUESTION 5  Coach is ordering shirts and shorts for the track team.. Shorts come in packs of 3, and shirts come in packs of 6. What is the least number of packs of each he should buy so that everyone has a pair of shorts and a shirt with none leftover?

QUESTION 6 II am planting 50 apple trees and 30 peach trees. I want the same number and type of trees per row. What is the maximum number of trees I can plant per row?

LESSON QUIZ ANSWERS…  1.) GCF  2.) GCF  3.) LCM  4.) LCM  5.) LCM  6.) GCF