Dividing Decimals by Decimals

Poll

What is your go to method for dividing so far?

Open Ended

How is dividing decimal numbers similar to and different from dividing whole numbers?

You can show work to help your explanation.

Open Ended

How can the methods that we know for dividing decimal numbers by one-digit whole numbers help us divide decimal numbers by two-digit whole numbers?

Today we'll get more practice with dividing decimal numbers, but this time the divisors will be two-digit numbers.

• Watch for patterns

• Analyze and look for similarities in the methods used

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Draw

Use the RAMP process to solve the following. You may work with your partner, but both must show work.

Now Let's Practice...

• Number 3

• Number 5

• Number 8

You Do...

• Number 2

• Number 4

• Number 6

• Number 7

We Do...

Quizizz Code:

752839

*Attempt insert at later date.

Open Ended

Complete your exit ticket found on page 213.

When you are finished, upload your work here.

Timekeeper will now take lead on this portion of the lesson.

Poll

How comfortable are your with dividing decimals by whole numbers?

• One

• Two

• Three

• Four

Draw

How can we rewrite 7 ÷ 0.1 by using a fraction for the divisor?

Draw

What type of division could be written to represent this tape diagram? Feel free to partition the diagram as needed to prove your answer.

Draw

When we ask ourselves how many tenths would it take to make 7, it can help us see that e would have to break apart each whole in 7 by ten.

1.) How many tenths make one whole?

2.) How many tenths would make 7 wholes?

Draw

Will this quotient be greater or less than the quotient of 7 ÷ $$\frac{1}{10}$$ ? Be prepared to justify your answer. You can use the diagram to draw a visual that will help you.

Open Ended

How can we rewrite 7.4 ÷ 0.01 by using a fraction for the divisor?

Open Ended

Think about the equations to the left and look for patterns. Then, turn to your partner and share the patterns you see with dividends and quotients when dividing numbers by 0.1.

Open Ended

Think about the equations to the left and look for patterns. Then, turn to your partner and share the patterns you see with dividends and quotients when dividing numbers by 0.01.

Now Let's Practice...

• Number 11

• Number 13

• Number 15

You Do...

• Number 10

• Number 12

• Number 14

We Do...

Video Response

Exit Ticket Time!

Attempt to answer all questions, but numbers 1 and 2 must be completed in the time given by the timekeeper.

Then you will be required to record yourself explain ONE problem on your exit ticket stating the problem, your answer and why your answer is logical (not necessarily correct).

Open Video Recorder

Poll

Self-assess time: How comfortable are you with understand with dividing decimals is all about?

• One

• Two

• Three

• Four

Draw

Read the following word problem. What expression can we write to represent this problem and why?

Draw

How can the diagram help you to see what to divide the 1.2 by? Can we think of the division as 12 tenths ÷ 4 tenths? How does this expression help you better see what do partition the disks into?

Draw

Solve, but before you do, write a related expression in unit form. Then divide.

Let's practice this new concept...

• Number 2

• Number 5

• Number 8

• Number 13

You do...

• Number 1

• Number 6

• Number 9

• Number 11

We do..

Video Response

It's Exit Time Again!

Timekeeper will take lead on this portion of the lesson. If you are struggling, please complete 1 problem to the best of your ability and that problem should be NUMBER ONE! Then, record yourself explaining your answer for one of the problems of your choice.

Open Video Recorder

Sprint Time!

You will be dividing a fraction by a whole number.

We'll complete the Sprint found on pages 230 and 231. Wait for my signal.

Practice, practice, practice

Turn to pages 235-238 and listen for instructions on how to complete your work.

We will also use ZEARN Mission 4, Lesson 30 to help us. If you have extra time in this practice phase, you can complete that lesson. It is bookmarked for everyone. If not, this lesson will be completed TODAY during WIN time after we DEAR (Drop Everything and READ).