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Tuesday, November 29 th. Please Complete Warm Up Did you write down your homework?. Warm Up. Write an Equivalent fraction for each: 1. 1/32. 2/5 . Corny Joke of the Day. Why are fish so easy to weigh? They have their own scales!. Weekly Review Answers . - PowerPoint PPT Presentation
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Tuesday, November 29th
• Please Complete Warm Up• Did you write down your
homework?
WARM UPWrite an Equivalent fraction for each:
1. 1/3 2. 2/5
Corny Joke of the Day
Why are fish so easy to weigh?
They have their own scales!
Weekly Review Answers
Remember your final is only two weeks away!!!!
Algebrao x = 10
o x = 4 2/3
o x = 6
o 1 ¾
Words to expressionso 6-25
o 3 + x = 4
o 2 • 4 + x = 24
o 32 ÷ 16
Fractionso 3
o 5 1/3
o 1 1/5
o 9 1/9
Estimateo 10
o 70
o 110,000
o 72
Evaluatingo 2
o 9 ½
o 1/33
o 57
New Weekly Review
Due Friday
Unit 4 Proportional
reasoning
Vocabulary Match UpPlease take out a sheet of paper
You must make a sentence with each word. You have 5 minutes!
1. Ratio2. Proportion3. Rate
4. Percent5. Sales Tax
What are Ratios?
RATIOS: a comparison of two quantities using division
Writing Ratios
There are 3 ways!1. Using “to”
Ex: 3 to 42. Using “:”
EX: 3:4 3. Using Fractions
EX: ¾
Read the ratio as “twenty-nine to twelve.”
Reading Math29
12___
AnExample
With Ms. Evans
Animals at the Vet
Cats 5
Dogs 7
Rabbits 2
Use the table to write a ratio: 1. Cats to rabbits
2. Dogs to total number of animals
3. dogs to rabbits
4. cats to dogs
You Try
Violins 29 Violas 12Cellos 10 Basses 9
NGMS 6th grade Orchestra
Answer the following questions based on the chart above…..1.Ratio of violins to violas
2.Cellos to basses
3.Violas to violins
Write each ratio one other way!
Classroom Ratios
Who can think of 3 characteristics of students in
this class?1.
2.
3.Write four ratios about the data you see (There are 28 students in our class)
EquivalentRatios
Equivalent ratios • are ratios that name the same
comparison. • You can find an equivalent ratio by
multiplying or dividing both terms of a ratio by the same number.
Can you make two equivalent ratios?!?!
1. 4.
2. 5. 5 to 9
3. 6 : 12
12
23
412
Jumping Jacks
Number of Jumping Jacks
Equivalent #1
Equivalent #2
Equivalent #3
Time (Seconds)
Rates
What is Rate?
RATE: compares two quantities that have different units of measure
What is Rate?
For example:Tia charges $28 dollars for 3 hours of swimming lessons. Kevin charges $18 dollars for 2 hours of swimming lessons. Which instructor offers a better deal?
How do we find it?
Divide! Set up your Rate
Tia: charges $28 dollars for 3 hours of swimming lessons.
Rate= = = 9.33Dollarshours
283
Find Kevin’s
Who had a better deal?Set up your Rate
Kevin: charges _______dollars for _______ hours of swimming lessons.
Rate= = =__________Dollarshours
You Try!
An 8-ounce bag ____________chips costs $1.68. A 4-ounce bag of __________chips costs $0.88. Which is the better deal?
Homework
WorkbookP. 54
