Topic F dividing decimals STANDARD - 5.NBT.3, 5.NBT.7
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