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

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Presentation transcript:

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

Objective: D ivide decimals by single-digit whole numbers involving easily identifiable multiples using place value understanding and relate to a written method. Grade 5 Module 1 Lesson 13

MATERIALS NEEDED FOR THIS LESSON P ersonal White Boards number disks Teacher Student Teacher Pages Student Pages Sprint A & B Problem Set Exit Ticket Homework

Fluency Practice (15 minutes)

1 minutes Do 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 minutes Do 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 = x 4 = 5 x =

Compare Decimal Fractions 3.NF.3d 3 minutes < > =

fifty-eight tenths th irty-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 =

Problem = hundredth

Problem = thousandths

Problem = tenths

Problem = hundredth

Problem = thousandths

Problem 7 Compare the relationships = = 8 How can help you solve the other problem? How are they alike? 48 6 = 8

Problem = 0.51 How can help you solve the other problem? = 51 How are they alike? = 51

Problem = 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) = ______. Explain how you would decompose so that you only need knowledge of basic facts to find the quotient. Correct all dividends in #4 so that the quotients are correct. Is there a pattern to the changes that you must make? In 4a, what mistake is being made that would produce = 8 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