Flipped Math 0.2 Part 3

Flipped Math 0.2 Part 3

by Dianne Saevig

Multiple Choice

What's the initial value? And why?

• $10, because it happens one time

• $97, because it happens one time.

Multiple Choice

So far we have

97

for our equation.

Are we going to be adding or subtracting?

• adding

• subtracting

Multiple Choice

Which word or words in the story told us that we are going to be subtracting?

• card

• bought

• deducted

• each time

Multiple Choice

So now we have

97 -

for our equation.

How much are we subtracting?

• 10

• 10u

• 97

• 97u

Multiple Choice

So now we have

97 - 10u

for our equation.

What is missing?

• m = 

• m

• d

• c

Multiple Choice

So our equation is

m = 97 - 10u

We must define our variables.

What does the m represent?

• number of movies

• number of months

• money he pays

• money on the card

Multiple Choice

So our equation is

m = 97 - 10u

m = money on the card

What does the u represent?

• value of the card

• number of uses of the card

• money he pays

• money on the card

Multiple Choice

Now we are set up for success!

a.) m = 97 - 10u

b.) m = money on the card

u = number of times he uses the card

To answer part c we have to know where in our equation we should put the 6.

• in place of m

• in place of u

Multiple Choice

This is what we have so far to solve part c.

m = 97 - 10u

m = 97 - 10(6)

Do we have to solve an equation like in 0.1 or can we simplify by using the order of operations or a calculator.

• Solve the equation like in 0.1 where we do the same thing on both sides to isolate the variable.

• Simplify one side using order of operations or a calculator.

Fill in the Blanks

Multiple Choice

This is what we have so far to solve part c.

m = 97 - 6u

m = 97 - 6(6)

What is the unit of measure for the answer to part c?

• movies

• $

• units

• uses of the card

Multiple Choice

Now we are set up for success!

m = 97 - 10u

m = money on the card

u = number of times he uses the card

To answer part d we have to know where in our equation we should put the 77.

• in place of m

• in place of u

Multiple Choice

This is what we have so far to solve part d.

m = 97 - 10u

77 = 97 - 10u

Do we have to solve an equation like in 0.1 or can we simplify by using the order of operations or a calculator.

• Solve the equation like in 0.1 where we do the same thing on both sides to isolate the variable.

• Simplify one side using order of operations or a calculator.

Multiple Choice

This is what we have so far to solve part d.

m = 97 - 10u

77 = 97 - 10u

What should we do first to both sides of the equation as we try to isolate the u?

• add 97

• subtract 97

• add 77

• subtract 77

Multiple Choice

This is what we have so far to solve part d.

m = 97 - 10u

77 = 97 - 10u

-20 = -10u

What should we do next to both sides of the equation as we try to isolate the u?

• divide by 10

• divide by 20

• divide by -10

• divide by -20

Fill in the Blanks

Multiple Choice

This is what we have so far to solve part d.

m = 97 - 10u

77 = 97 - 10u

-20 = -10u

2 = u

What is the unit of measure for the answer to part d?

• $

• units

• uses of the card

Open Ended

Answers are:

c.) $37

d.) use it 2 times

Do you feel ready to try word problems on your own now?

Multiple Choice

What's the initial value? And why?

• $4, because it happens one time

• $4, because it happens one time.

Multiple Choice

So far we have

4

for our equation.

Are we going to be adding or subtracting?

• adding

• subtracting

Multiple Choice

Which word or words in the story told us that we are going to be adding?

• charges

• flat fee

• plus

• per hour

Multiple Choice

So now we have

4 +

for our equation.

How much are we adding?

• 11h

• 11

• 4

• 4d

Multiple Select

So now we have

4 + 11h

for our equation.

What is missing?

• c 

• m

• c =

• m =

Multiple Choice

So our equation is

c = 4 + 11h

We must define our variables.

What does the c represent?

• charges (total) for babysitting h hours

• hourly charge

• number of hours she is babysitting

• flat fee

Multiple Choice

So our equation is

c = 4 + 11h

c = charge for babysitting (total)

What does the h represent?

• amount of happiness

• number of humans she is babysitting for

• number of hours she is babysitting

• total charges for the babysitting job

Multiple Choice

Now we are set up for success!

a.) c = 4 + 11h

b.) c = charge for babysitting (total

h = number of hours babysitting

To answer part c we have to know where in our equation we should put the 3.

• in place of c

• in place of h

Multiple Choice

This is what we have so far to solve part c.

c = 4 + 11h

c = 4 + 11(3)

Do we have to solve an equation like in 0.1 or can we simplify by using the order of operations or a calculator.

• Solve the equation like in 0.1 where we do the same thing on both sides to isolate the variable.

• Simplify one side using order of operations or a calculator.

Fill in the Blanks

Multiple Choice

This is what we have so far to solve part c.

c = 4 + 11h

c = 4 + 11(3)

c = 37

What is the unit of measure for the answer to part c?

• $

• hours

• children

• jobs

Multiple Choice

Now we are set up for success!

c = 4 + 11h

c = charge for babysitting (total)

h = number of hours babysitting

To answer part d we have to know where in our equation we should put the 70.

• in place of c

• in place of h

Multiple Choice

This is what we have so far to solve part d.

c = 4 + 11h

70 = 4 + 11h

Do we have to solve an equation like in 0.1 or can we simplify by using the order of operations or a calculator.

• Solve the equation like in 0.1 where we do the same thing on both sides to isolate the variable.

• Simplify one side using order of operations or a calculator.

Multiple Choice

This is what we have so far to solve part d.

c = 4 + 11h

70 = 4 + 11h

What should we do first to both sides of the equation as we try to isolate the h?

• add 4

• subtract 4

• add 70

• subtract 70

Multiple Choice

This is what we have so far to solve part d.

c = 4 + 11h

70 = 4 + 11h

66 = 11h

What should we do next to both sides of the equation as we try to isolate the h?

• divide by 11

• divide by 66

• divide by -11

• divide by -66

Fill in the Blanks

Multiple Choice

This is what we have so far to solve part d.

c = 4 + 11h

70 = 4 + 11h

66 = 11h

6 = h

What is the unit of measure for the answer to part d?

• $

• hours

• charges

• humans

Open Ended

Answers are:

c.) $37

d.) 6 hours

Do you feel ready to try word problems on your own now?