Monday, March 31, 2014

POTDMs. Tyler bought 4 types of crayons. She bought 30 of each kind. She also purchased some markers, but bought 5 times as many markers as crayons. How many markers did Ms. Tyler buy?

POTD Answer

Ms. Tyler bought 4 types of crayons. She bought 30 of each kind. She also purchased some markers, but bought 5 times as many markers as crayons (this means the amount of markers is greater!!). How many markers did Ms. Tyler buy?

4 types of crayons x 30 each = 120 total crayons

Crayons x 5 = markers so,

120 total crayons x 5 = 600 markers

Multiplication as Comparisons

• Define the following terms– Factor– Product

• Multiplicative Comparison is a situation in which one quantity is multiplied by a specified number to get another quantity.– compares two quantities by showing that one quantity is a specified

number of times larger or smaller than the other • It helps to remember that the equal sign really means "is the same

as."– EX: 4 groups of 7

• 4 x 7 is the same as 28.• 28 is the same as 4 x 7. • 28 is the same as 4 sets of 7.• 28 is 4 times as many as 7.

Let’s Practice • 64 is eight times as many as...• 42 is six times as many as...• 35 is five times as many as...• 99 is nine times as many as... • 8 x 9 = 72

72 = 8 x 972 is 8 times as many as 972 is 9 times as many as 8

• 3 x 6 = 18 2 x 5 = 10 6 x 4 = 24 3 x 7 = 21 • 4 x 5 = 20 6 x 7 = 42 7 x 8 = 56 9 x 4 = 36

Guided/Independent Practice

Tuesday, April 1, 2014

POTDMrs. Talton is having a party. She needs 100 ounces of chocolate for her fondue machine. At the store, she can only buy 8 ounce and 12-ounce packages. What is the least amount Mrs. Talton can buy and still have enough for her party?

POTD AnswerMrs. Talton is having a party. She needs 100 ounces of chocolate for her fondue machine. At the store, she can only buy 8 ounce and 12-ounce packages. What is the least amount Mrs. Talton can buy and still have enough for her party?

8 packs of 12-ounce = 96 ounces1 pack of 8-ounce= 8 ouncesTotal of 9 packs but, 104 ounces…still 9 packs, but contains more ounces….

7 packs of 12-ounces= 84 ounces2 packs of 8-ounces = 16 ouncesTotal of 9 packs and 100 ounces… best answer

Homework Review

Problem Equation21 days is ______ times longer than 7 days.______ pounds is 4 times as heavy as 2 pounds.72 inches is 12 times the length of ______ inches._______ fish is 5 times as many as 6 fish.

36 = ______ x 4____= 8 x 670 = 7 x _____54= _____ x 6

Monday Homework Complete the Table. Create your own for the last two rows.

Multiplicative Comparisons

• Take notes while you watch• http://learnzillion.com/lessons/3017-solve-mu

ltiplicative-comparison-word-problems-using-multiplication-or-division

Let’s PracticeUse the bar method and write an equation

1. Sydnie is twelve years old. Her teacher is eight times older. How old is Sydnie’s teacher?

2. Kumorah has 16 times as many pencils as Alona. If Kumorah has 48 pencils, how many does Alona have?

There are 9 white flowers. There are 3 times as many red flowers as white flowers. How many red flowers are there? Product Unknown

Two quantities are compared. One is a multiple of the other. We know the smaller quantity (factor) and the multiplier. To find the bigger quantity (product) we ________________.

There are 27 red flowers. There are 3 times as many red flowers as white flowers. How many white flowers are there? Factor Unknown

Two quantities are compared. One is a multiple of the other. We know the bigger quantity (product) and the multiplier. To find the smaller quantity (factor) we _________________.

There are 27 red flowers and 9 white flowers. How many times as many red flowers as white flowers are there? Multiplier Unknown

Two quantities are compared. One is a multiple of the other. We know both the bigger quantity (product) and the smaller quantity (factor). To find the multiplier we ____________________.

Steps for problem solving

Understand the problem situation. Represent the situation with a model. Write an expression and solve. Write the answer and look back (check)

Guided• a. Helen raised $12 for the food bank last year and she raised 6 times as much

money this year. How much money did she raise this year?

• b. Sandra raised $15 for the PTA and Nita raised $45. How many times as much money did Nita raise as compared to Sandra?

• c. Luis raised $45 for the animal shelter, which was 3 times as much money as Anthony raised. How much money did Anthony raise?

Independent

Independent

Wednesday, April 2, 2014POTD

JABIZ town can hold 300 students at a time. The table below shows the attendance for the last 5 days. If JABIZ town had been at max capacity, how many more people would have attended in the 5-day period? Day Attendance

1 2132 1433 984 2795 256

POTD Answer

JABIZ town can hold 300 students at a time. The table below shows the attendance for the last 5 days. If JABIZ town had been at max capacity, how many more people would have attended in the 5-day period?

Day Attendance How many more per day

1 213 872 143 1573 98 2024 279 215 256 44total 989 511

1st way.5 days x 300 max= 1500 total people.1500 max - 989 actual = 511 more people

2nd wayFind the difference each day from 300 max and add the differences together.

87+157+202+21+44= 511 more people

Homework ReviewMultiplicative Comparison ProblemsWrite equation and use the bar model to solve.1. Aaliyah can do 6 push-ups in one minute. Jeremiah said he can do nine

times that amount. How many push-ups can Jeremiah do? 2. Saada has collected seven times the amount of snow globes as Tia. If

Saada has collected 42 snow globes, how many has Tia collected? 3. Aisha’s plant is 24 inches tall and Charlitta’s plant is 6 inches tall. How

many times taller is Aisha’s plant than Charlitta’s? 4. Sharhonda can eat 4 times as many crabs as Morris. If Morris can eat

eight crabs, how many crabs can Sharhonda eat?

Guided PracticeWrite three problems using this information Use a bar model

to solve each problem in the set: – Product unknown– Factor unknown– Multiplier unknown

1. Connie ran 50 meters Melissa ran 200 meters 2. The total number of vehicles counted was156. There were 3 times as many passenger cars as trucks.

Independent

Identify what part of the equation is unknown. Write an equation and use the bar model to solve.

Independent

Identify what part of the equation is unknown. Write an equation and use the bar model to solve.

Thursday, April 3, 2014

RALEIGH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Friday, April 4, 2014

POTDThomas had 4 cases of tissue. Each case held 50 boxes. He was bored at work and built a tower with ¼ of the boxes. How many boxes did he use?

POTD Answer

Thomas had 4 cases of tissue. Each case held 50 boxes. He was bored at work and built a tower with ¼ of the boxes. How many boxes did he use?

4 cases x 50 boxes each= 200 total boxes200 ÷ 4 = 50 boxes used

Homework Review• Write an equation and use a bar model to solve.1. Jiselle picked 6 apples. Evan picked 7 times as many apples. How many apples did Evan pick?

2. Long’s grandmother lives 8 miles away from him. His aunt lives 6 times as far away from him as his grandmother. How far away does his aunt live?

3. A tree in Travis’ yard is 35 feet tall. Travis is 5 feet tall. The tree is how many times taller than Travis?

4. Caleb has twelve stamps in his stamp collection. Samuel has 3 times as many stamps. How many stamps does Samuel have?

5. Zakaria has 24 marbles. He has 6 times as many marbles as Kristopher. How many marbles does Kristopher have?

6. Devin’s farm is 9 acres. Randall’s farm has 4 times as many acres. How many acres is Randall’s farm?

Raleigh Math Trail Early finishers • Number your paper 1-10 for the ten stops that

are going to make in Raleigh.• For each stop write an equation and answer

the question. Also, write down one interesting fact and create one math problem of your own for each stop.

https://sites.google.com/site/elmoremathtrail322/introduction

Identify what part of the equation is unknown. Write an equation and use the bar model to solve.

Identify what part of the equation is unknown. Write an equation and use the bar model to solve.