Topic Fdividing decimals

STANDARD - 5.NBT.3, 5.NBT.7

Objective: Divide decimals by single-digit whole numbers involving easily identifiable multiples using place value understanding and relate to a written method.

Grade 5Module 1 Lesson 13

MATERIALS NEEDEDFOR THIS LESSON

Personal White Boardsnumber disks

Teacher

Student

Teacher Pages

Student Pages

Sprint A & BProblem SetExit TicketHomework

Fluency Practice (15 minutes)

1 minutesDo as many problems as you can.

Do your personal best. Take your mark!

Get set! THINK!

Subtract Decimals

SPRINT A

4.NBT.1 9 minutes

1 minutesDo as many problems as you can.

Do your personal best. Take your mark!

Get set! THINK!

Subtract Decimals

SPRINT B

4.NBT.1

Find the Product

5.NBT.7 3 minutes

4 x 3 = 4 x 0.2 = 4 x 3.2 =

4 x 3.21 = 9 x 0.1 = 9 x 0.03 =

9 x 2.13 = 4.021 x 4 = 5 x 3.2375 =

Compare Decimal Fractions

3.NF.3d 3 minutes

13.78 13.86

0.78 78 100

< > =

439.3 4.39

5.08 fifty-eight tenths

thirty-five and 9 thousandths 4 tens

< > =

Application Problem (7 minutes)

Louis buys 4 chocolates. Each costs $2.35. Louis multiples 4 x 235 and gets 940. Place the decimal to show the cost of the chocolates and explain your reasoning using words, numbers and pictures.

Concept Development (28 minutes)

tenths

Problem 1

Dividing decimals

0.9 3 =

Problem 2

0.24 4 = hundredth

Problem 3

0.032 8 = thousandths

Problem 4

1.5 5 = tenths

Problem 5

1.05 5 = hundredth

Problem 6

3.015 5 = thousandths

Problem 7

Compare the relationships

4.8 6 = 0.8

48 6 = 8How can help you solve the other problem?

How are they alike?

48 6 = 8

Problem 8

4.08 8 = 0.51

How can help you solve the other problem?

408 8 = 51

How are they alike?

408 8 = 51

Problem 9

63.021 7 = 9.003

How can help you solve the other problem?

63,021 7 = 9,003

How are they alike?

63,021 7 = 9,003

Problem Set (10 minutes)

Do Your Personal Best (Complete independently!)

Student Debrief (10 minutes)

When decomposing decimals in different ways, how can you tell which is the most useful?

Is there another decomposition of the dividend in 2c that could have been useful in dividing by 2? What about in 2d? Why or why not?

In 2a, how does your understanding of whole number division help you solve the equation with a decimal?

EXIT TICKET (3 minutes)

Complete the exit ticket and turn in...

HOMEWORK