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Topic F
Comparison, Order, and Size of
Fractions
Module 5: Lesson 29
Lesson 29
Objective: Compare fractions with the same
numerator using <, >, or = and use a model to
reason about their size.
Multiply by 8 (8 minutes)
Materials: (S) Double-sided Multiply by 8 Problem
Sets
• Skip-count by eights. (Write multiples horizontally as students count.)
• (Write 8 x 5 = ____.) Let’s skip-count by eights to find the answer. (Count with
fingers to 5 as students count.)
• (Circle 40 and write 8 x 5 = 40 above it. Write 8 x 3 = ____.) Let’s skip-count up
by eights again. (Count with fingers to 3 as students count.)
• Let’s see how we can skip-count down to find the answer, too. Start at 40.
(Count down with your fingers as students say numbers.)
• (Write 8 x 7 = ____.) Let’s skip-count up by eights. (Count with fingers to 7 as
students count.)
Multiply by 8 (8 minutes)
Materials: (S) Double-sided Multiply by 8 Problem
Sets
(Write 8 x 9 = ____.) Let’s skip-count up by eights. (Count with
fingers to 8 as students count.)
Let’s see how we can skip-count down to find the answer, too.
Start at 80. (Count down with your fingers as student say
numbers.)
Let’s get some practice multiplying by 8. Be sure to work left to
right across the page. (Distribute Multiply by 8 Problem Set.)
Compare Fractions with the Same
Numerator (4 minutes)
(Project a tape diagram partitioned into 3 equal units with the first 2 units
shaded.) Say the fraction that is shaded.
(Write 2 thirds to the left of the tape diagram. Project a tape diagram of 6
equal, unshaded units directly below the first tape diagram. Next to the
second tape diagram, write 2 sixths.) How many units should I shade to
show 2 sixths?
(Shade the first 2 units in the second tape diagram). On your personal
white board, write the larger fraction.
Continue process for 3 tenths and 3 fourths, 5 sixths and 5 eighths, and 7
eighths and 7 tenths.
Application Problem (8 minutes)
Application Problem (8 minutes)
Concept Development (30 minutes)
Students begin in pairs facing each other, arranged in a large circle
around the room. Students slip the template from Lesson 25 into
personal white boards.
Start on Side A of your template. Today we’ll only use the first rectangle.
On my signal, draw and shade a fraction less than ½ and label it below
the rectangle. (Signal.)
Check your partner’s work to make sure it’s less than ½ .
Concept Development (30 minutes)
Concept Development (30 minutes)
Partition both squares into sixths.
Partition the second square to show double the number of units in the same
whole.
What units do we have?
Shade in 4 units of each shape and label the shaded fraction below the square.
Whispering to your partner, say a sentence comparing the fractions using the
words ‘greater than,’ ‘less than,’ or ‘equal to.’
Now place the correct symbol between the fractions.
Concept Development (30 minutes)
Partition the first rectangle into sevenths and the second one into fifths.
Shade in 3 units of each shape and label the shaded fraction below the
square.
Whispering to your partner, say a sentence comparing the fractions using the
words ‘greater than,’ ‘less than,’ or ‘equal to.’
Now place the correct symbol between the fractions.
Concept Development (30 minutes)
Partition the first number line into eighths and the second one into tenths.
On the first number line, make an arrow to label of the unit fraction.
On the second number line, make an arrow to label 2 copies of 5/10.
Whispering to your partner, say a sentence comparing the fractions using the
words ‘greater than,’ ‘less than,’ or ‘equal to.’
How do you know?
Now write the comparison as a number sentence with the correct symbol
between the fractions.
Problem Set (10 minutes)
Student Debrief (10 minutes)
Exit Ticket (3 minutes)
Homework
3-5 Lesson 29
Homework
Is Due Tomorrow!

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Module 5 Lesson 29

  • 1. Topic F Comparison, Order, and Size of Fractions Module 5: Lesson 29 Lesson 29 Objective: Compare fractions with the same numerator using <, >, or = and use a model to reason about their size.
  • 2. Multiply by 8 (8 minutes) Materials: (S) Double-sided Multiply by 8 Problem Sets • Skip-count by eights. (Write multiples horizontally as students count.) • (Write 8 x 5 = ____.) Let’s skip-count by eights to find the answer. (Count with fingers to 5 as students count.) • (Circle 40 and write 8 x 5 = 40 above it. Write 8 x 3 = ____.) Let’s skip-count up by eights again. (Count with fingers to 3 as students count.) • Let’s see how we can skip-count down to find the answer, too. Start at 40. (Count down with your fingers as students say numbers.) • (Write 8 x 7 = ____.) Let’s skip-count up by eights. (Count with fingers to 7 as students count.)
  • 3. Multiply by 8 (8 minutes) Materials: (S) Double-sided Multiply by 8 Problem Sets (Write 8 x 9 = ____.) Let’s skip-count up by eights. (Count with fingers to 8 as students count.) Let’s see how we can skip-count down to find the answer, too. Start at 80. (Count down with your fingers as student say numbers.) Let’s get some practice multiplying by 8. Be sure to work left to right across the page. (Distribute Multiply by 8 Problem Set.)
  • 4. Compare Fractions with the Same Numerator (4 minutes) (Project a tape diagram partitioned into 3 equal units with the first 2 units shaded.) Say the fraction that is shaded. (Write 2 thirds to the left of the tape diagram. Project a tape diagram of 6 equal, unshaded units directly below the first tape diagram. Next to the second tape diagram, write 2 sixths.) How many units should I shade to show 2 sixths? (Shade the first 2 units in the second tape diagram). On your personal white board, write the larger fraction. Continue process for 3 tenths and 3 fourths, 5 sixths and 5 eighths, and 7 eighths and 7 tenths.
  • 7. Concept Development (30 minutes) Students begin in pairs facing each other, arranged in a large circle around the room. Students slip the template from Lesson 25 into personal white boards. Start on Side A of your template. Today we’ll only use the first rectangle. On my signal, draw and shade a fraction less than ½ and label it below the rectangle. (Signal.) Check your partner’s work to make sure it’s less than ½ .
  • 9. Concept Development (30 minutes) Partition both squares into sixths. Partition the second square to show double the number of units in the same whole. What units do we have? Shade in 4 units of each shape and label the shaded fraction below the square. Whispering to your partner, say a sentence comparing the fractions using the words ‘greater than,’ ‘less than,’ or ‘equal to.’ Now place the correct symbol between the fractions.
  • 10. Concept Development (30 minutes) Partition the first rectangle into sevenths and the second one into fifths. Shade in 3 units of each shape and label the shaded fraction below the square. Whispering to your partner, say a sentence comparing the fractions using the words ‘greater than,’ ‘less than,’ or ‘equal to.’ Now place the correct symbol between the fractions.
  • 11. Concept Development (30 minutes) Partition the first number line into eighths and the second one into tenths. On the first number line, make an arrow to label of the unit fraction. On the second number line, make an arrow to label 2 copies of 5/10. Whispering to your partner, say a sentence comparing the fractions using the words ‘greater than,’ ‘less than,’ or ‘equal to.’ How do you know? Now write the comparison as a number sentence with the correct symbol between the fractions.
  • 12. Problem Set (10 minutes) Student Debrief (10 minutes) Exit Ticket (3 minutes)