6th Grade Responsive Math- 1/26/2021

6th Grade Responsive Math- 1/26/2021

Make sure you have scratch paper ready!

Check In: What are your math goals for Term 3?

Agenda

• First 5 and Check- In

• Fluency- Equivalent Fractions

• Small Group Lesson- Equivalent Ratios

• Practice!

• Last 5 and Close Out

Fluency

Finding Equivalent Fractions

Multiple Choice

What fraction is green?

• 1/4

• 1/2

• 2/3

• 2/3

Multiple Choice

What fraction of the rectangle is blue?

• 1/6

• 1/3

• 6/2

• 2/3

Multiple Choice

Simplify: 9/36

• SF

• 3/12

• 1/4

• 3/4

Multiple Choice

Simplify.

14/35

• SF

• 2/5

• 7/8

• 1/4

Multiple Choice

Simplify: 44/60

• SF

• 2/3

• 11/15

• 11/12

Multiple Choice

Which fraction is equivalent to 1?

• 1/2

• 1/10

• 5/5

• 5/1

Multiple Choice

Which is NOT an equivalent fraction to one half?

• 2/4

• 2/3

• 4/8

• 3/6

Small Group Lesson

Equivalent Ratios

Review!

Ratios are just comparing things. You have to look at what is given to you and write your findings as a ratio or fraction.

Multiple Choice

What is a Ratio?

• Is a comparison of two quantities

• To multiply two fractions

• Strictly a fraction

• Two decimals that can be multiplied

Multiple Choice

What are the three different ways you can write a ratio?

• Fraction, comma, words

• Fraction, colon, words

• Colon, words, pictures

• Picture, fraction, comma

Multiple Choice

The picture above represents a ratio from the number os red hearts to the number of blue diamonds. This is equal to:

• 6 : 10

• 10 : 6

• 10 : 16

• 16 : 6

Multiple Choice

Which sentence accurately represents the following ratio:

• The ratio of moons to suns is 4 to 8

• There are 4 moons for every 8 suns

• There are 4 moons for every 2 suns

• The ratio of suns to moons is 2:1

Multiple Choice

A cookie recipe calls for 3 cups of flour and 2 cups of chocolate chips. What is the ratio of chocolate chips to flour?

• 3 : 2

• 3 to 2

• 6 : 4

• 2 : 3

Multiple Choice

A jar contains 55 marbles, of which 48 are blue, 4 are red, and the rest are green. What is the ratio of green to red marbles?

• 3:4

• 48:55

• 4:48

• 3:48

Equivalent Ratios

Remember that you can re-write ratios as fractions. Once they are a fraction, you can find something equivalent by either MULTIPLYING or DIVIDING.

Open Ended

What happens to ratios when you multiply? When you divide?

Key Point

If you are multiplying your ratio will get BIGGER, if you are dividing your ratio will get SMALLER.

Multiple Choice

Are these ratios equivalent?

 $\frac{2}{3}$  and  $\frac{8}{9}$  

• yes

• no

Multiple Choice

Thinking of equivalent ratios, 1 : 4 is equal to:

• 2 : 9

• 4 : 16

• 6 : 26

• 8 : 40

Multiple Choice

The 1st term of a ratio is 25 and its second is 20. The simplest form of that ratio is:

• 5 : 4

• 5 : 3

• 6 : 4

• 2 : 1

Multiple Select

Select ALL the ratios that are equivalent to 16 : 6

• 3 to 8

• 32 : 12

• 4 to 2

• 8 to 3

Multiple Choice

Here is a double number line showing that it cost $3 to buy 2 bags of chips. At this rate, how many bags of chips can you buy with $15?

• 5 bags of chips

• 4 bags of chips

• 10 bags of chips

• 8 bags of chips