Unit 2 Proportional Tables

Unit 2 Proportional Tables

Learning Target for Mon/Tues:

I can determine if a table is proportional or not.

Learning Target for Wed/Thurs:

I can find the constant from a table.

Math Tables

• Tables have titles!

• Tables have units or labels!

• Tables have x and y values, they are comparing a relationship! - just like ratios

• x = time and y = water used

• x is on top and y is on the bottom

Math Tables

• Tables have titles!

• Tables have units or labels!

• Tables have x and y values, they are comparing a relationship! - just like ratios

• x = # of trees y = # of apples

• x is on the left and y is on the right

Multiple Choice

Which word is the label for x?

• $9

• 1 hour

• Money

• Hours

What does proportional mean?

• relationship between two variables or labels

• ratios are equivalent when a table is proportional and you will have a constant!

• USE y  $\div$  x = CONSTANT

• # of trees = x # of apples = y

• If your table has the same constant it is PROPORTIONAL!

Multiple Select

How do you know a table is proportional?

• The table will have the same constant

• If the table has a title it is proportional

• The ratios will be equivalent

• The table will have labels

Multiple Choice

How do you find the constant?

• Constant = x $\div$ y

• Constant = y $\div$ x

Let's practice determining if tables are proportional or not!

• Remember check for a constant!

• Constant = y $\div$  x

• k = constant 

• k = y / x

Choose the proportional table!

• Only one of these tables is proportional!

• Type your answer in the chat!

• Remember Constant = y  $\div$  x

Multiple Choice

Is this table proportional?

• YES

• NO

Multiple Choice

Is this table proportional?

• YES

• NO

Stop here for Monday/Tuesday

Students should begin working on NEW recommended IXL lessons

OR

ED PUZZLE VIDEO

DO NOT ATTEMPT THE QUIZ UNTIL FRIDAY!

What does proportional mean?

• relationship between two variables or labels

• ratios are equivalent when a table is proportional and you will have a constant!

• USE y  $\div$  x = CONSTANT

• # of trees = x # of apples = y

• If your table has the same constant it is PROPORTIONAL!

Multiple Choice

How do you find the constant?

• Constant = x $\div$ y

• Constant = y $\div$ x

Find the constant!

• Remember constant = y  $\div$   x

• Type your answer in the chat!

Multiple Choice

Find the constant!

• constant = 4

• constant = 2

• constant = 6

• constant = 3

Multiple Choice

Find the constant!

• constant = 6

• constant = 2

• constant = 15

• constant = 4

Sometimes the table given may be incomplete ...

• To complete the table first find the constant!

• Then use that information to find the missing number

• Type your answers in the chat!

Whole Class Example: complete the table!

• Find the constant

• Then find missing values

• You can type your answers in the chat

Multiple Choice

Find the missing value of y!

• y = 5

• y = 25

• y = 35

• y = 30

Multiple Choice

Determine the missing value in the table.

• 15
• 3
• 1/3
• 9

Stop here for Wednesday/Thursday

Students should begin working on NEW recommended IXL lessons

OR

ED PUZZLE VIDEO

Once you finish the above assignments, you may attempt the quiz! You will have two retakes! If you do not reach 70% look for a google form next week!