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Topic C P lace value and rounding decimal fractions

Topic C P lace value and rounding decimal fractions. STANDARD - 5.NBT.4. Grade 5 Module 1 Lesson 8. Objective: R ound a given decimal to any place 
using place value understanding and 
the vertical number line. MATERIALS NEEDED FOR THIS LESSON. Student. P ersonal White Boards.

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Topic C P lace value and rounding decimal fractions

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  1. Topic C Place value and rounding decimal fractions STANDARD - 5.NBT.4

  2. Grade 5 Module 1 Lesson 8 Objective: Round a given decimal to any place 
using place value understanding and 
the vertical number line.

  3. MATERIALS NEEDED FOR THIS LESSON Student Personal White Boards Student Pages Problem Set Exit Ticket Homework Teacher Teacher Pages

  4. Fluency Practice(12 minutes)

  5. Rename the Units 6 minutes 5.NBT.3 Say the number as a decimal 13 tenths = _________

  6. 14 tenths = _________ 24 tenths = _________ 124 tenths = _________ 524 tenths = _________

  7. Name the number if tenths 2.5 tenths = _________ 17.5 tenths = _________ 27.5 tenths = _________

  8. Name the number if tenths 24.5 tenths = _________ 24.3 tenths = _________ 42.3 tenths = _________

  9. Name the number as a decimal 37 hundredths = _________ 137 hundredths = _________ 537 hundredths = _________ 296 hundredths = _________

  10. Say the number sentence 0.548 = _________ thousandths 1.548 = _________ thousandths 2.548 = _________ thousandths 7.352 = _________ thousandths

  11. Round to Different Place Values 9 6 minutes 5.NBT.4 9 8.735 8.735 8.5 round to the ones 8.8 8.74 8 8.75 8.74 8.735 8.735 round to the tenths round to the hundredths 8.7 8.735 8.7 8.73

  12. 7.458 8 7.5 round to the ones 7 7.5 7.458 7.46 7.458 7.5 7 7.46 7.458 7.45 round to the tenths 7.455 round to the hundredths 7.4 7.45

  13. Application Problem (6 minutes) Organic, whole-wheat flour sells in bags 
weighing 2.915 kilograms? How much flour is 
this rounded to the nearest tenth? How much 
flour is this rounded to the nearest one? What is 
the difference of the two answers? Use a place 
value chart and number line to explain your 
thinking.

  14. Concept Development (32 minutes)

  15. Problem 1 round 49.67 to the nearest ten 5 tens or 50 decomposition 45.67 4 tens or 40

  16. round 49.67 to the nearest ones decomposition ones 50 49.5 49 decomposition tenths 49.7 49.65 49.6

  17. Problem 2 9.949 round to the nearest tenth and hundreth 9.949 10 decomposition tenths 9.95 9.95 9.9 decomposition hundredths 9.955 9.94

  18. Problem 3 28 Determine the maximum and minimum possible values _______ 27 27.5 maximum 27 27 26.5 minimum 26

  19. Problem Set (10 minutes) Do Your Personal Best (Complete independently!)

  20. Student Debrief (10 minutes) Compare how we rounded in lesson 7 to lesson 8. 
How are they alike? How are they different? Once a number rounds up at one place value, 
does it follow then that every place value will 
round up? Why or Why not? How does the place value chart help 
organize your thinking when rounding

  21. EXIT TICKET (3 minutes) Complete the exit ticket and turn in...

  22. HOMEWORK

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