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Lesson 14: I can use decimal multiplication to express equivalent measurements 5th Grade Module 2 – Lesson 14.

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Presentation on theme: "Lesson 14: I can use decimal multiplication to express equivalent measurements 5th Grade Module 2 – Lesson 14."— Presentation transcript:

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2 Lesson 14: I can use decimal multiplication to express equivalent measurements 5th Grade Module 2 – Lesson 14

3 Let’s divide by multiples of 10! 5th Grade Module 2 – Lesson 14 420 ÷ 10 =____ Solve the Division Sentence 42 ÷ 2 =___ 420 ÷ 10 ÷ 2 = 420 ÷ 20 =____ 420 ÷ 20 =____ 21 21 42 420 ÷ 20 =___ 21 Solve the Division Sentence Write 420 ÷ 20 as a three- step division sentence taking out the ten. 42 ÷ 2 =___ 21

4 Let’s divide by multiples of 10! 5th Grade Module 2 – Lesson 14 960 ÷ 10 =____ Solve the Division Sentence 96 ÷ 3 =___ 960 ÷ 10 ÷ 3 = 960 ÷ 30 =____ 960 ÷ 30 =____ 32 32 96 960 ÷ 30 =___ 32 Solve the Division Sentence Write 960 ÷ 30 as a three- step division sentence taking out the ten. 96 ÷ 3 =___ 32

5 Let’s divide by multiples of 10! 5th Grade Module 2 – Lesson 14 680 ÷ 10 =____ Solve the Division Sentence 68 ÷ 2 =___ 680 ÷ 10 ÷ 2 = 680 ÷ 20 =____ 680 ÷ 20 =____ 34 34 68 680 ÷ 20 =___ 34 Solve the Division Sentence Write 680 ÷ 20 as a three- step division sentence taking out the ten. 68 ÷ 2 =___ 34

6 Time to Convert Get Your White Board Ready! 5th Grade Module 2 – Lesson 14 1 meter = ______ centimeters 100 1 m 50 cm = ______ centimeters 150 1 m 5 cm = ______ centimeters 105 2 meters = ______ centimeters 200 2 m 30 cm = ______ centimeters 230 2 m 7 cm = ______ centimeters 207 2 m 90 cm = ______ centimeters 290 4 m 8 cm = ______ centimeters 408

7 5th Grade Module 2 – Lesson 14 Time to Convert Get Your White Board Ready! 1 foot = _____ inches 12 1 ft 1 in = _____ inches 13 1 ft 2 in = _____ inches 14 1 ft 10 in = _____ inches 22 2 feet= _____ inches 24 2 ft 6 in = _____ inches 30

8 5th Grade Module 2 – Lesson 14 Try Some More! 2 ft 10 in = _____ inches 34 2 ft 1 in = _____ inches 25 3 feet = _____ inches 36 3 ft 10 in = _____ inches 46 3 ft 1 in= _____ inches 37 3 ft 4 in = _____ inches 40

9 Time to Convert Get Your White Board Ready! 5th Grade Module 2 – Lesson 14 12 inches = ______ foot 1 1 13 inches= ___ ft ___ in 1 1 14 inches= ___ ft ___ in 1 1 1 1 2 2 22 inches= ____ft _____ in 1 1 10 24 inches= ____ft _____ in 2 2 0 0 34 inches= ____ft _____ in 2 2 10 25 inches= ____ft _____ in 2 2 1 1 46 inches= ____ft _____ in 3 3 10

10 Application Problem #1 5th Grade Module 2 – Lesson 14 36 120 1,332 Click to Reveal Solution

11 Application Problem #2 5th Grade Module 2 – Lesson 14 See Lesson Plan for a Hands-On Activity

12 5th Grade Module 2 – Lesson 14 Concept Development Problem 1 7.43 kilometers = ______ meters Today we will be converting units with decimals. Yesterday we converted from large units to smaller units using multiplication. How will we solve this one? Turn & Talk We will multiply since kilometers is larger than meters. What will we multiply 7.43 by ? We will multiply since kilometers is larger than meters. What will we multiply 7.43 by ? 1,000 Solve this problem on your white board. 7.43 x 1000 = ____ meters 7430 Does our solution make sense? Does our solution make sense?

13 5th Grade Module 2 – Lesson 14 Concept Development Problem 2 1.8 miles = ______ yards Which part of your reference sheet will help you solve this problem? Tell your partner. 1 Mile = 1,760 Yards What operation would we use to solve this problem? Hmmm….Big to Small… Multiply or Divide? Write the equation that would solve this problem. 1.8 x 1760 = ______ Solve this conversion. Think about how you can adjust 1.8 to a more friendly whole number to help you multiply. Solve this conversion. Think about how you can adjust 1.8 to a more friendly whole number to help you multiply. 1760 1760 x 1.8 x10 x 18 *Solve using ink tool 1760 1760 x 1.8 x10 x 18 *Solve using ink tool

14 5th Grade Module 2 – Lesson 14 Problem 3 0.83 kilograms = ______ grams = ______ milligrams Volunteer to Share their Solution Use Your reference Sheet to help you solve this problem independently.

15 Get Ready to Complete the Problem Set on Your Own! Complete Pages 2.D.21 & 2.D.22 You will have 20 minutes to work. Try your Best! 5th Grade Module 2 – Lesson 14

16 What do you notice about Problem 1(g)? How is it different than the other conversions? How did this difference affect how you solved? Look back at the chart and your work in Problem 3(d). What do you think about the size of the Statue of Liberty? How does the question help you realize how big she is?

17 5th Grade Module 2 – Lesson 14 EXIT TICKET Page 2.D.23


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