Unit 5
To the Number Line
Lesson 5
Fractions as Numbers
Expressions and Equations
3
Let’s learn about fractions on the number line.
Unit 5 ● Lesson 5
Learning
Goal
3
Two Number Lines
Unit 5 ● Lesson 5 ● Warm-up
What do you notice? What do you wonder?
3
Notice and Wonder
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
Card Sort: Number Lines
Unit 5 ● Lesson 5 ● Activity 1
Sort the cards into categories of your choosing. Be prepared to explain the meaning of your categories.
3
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
Card Sort: Number Lines
Unit 5 ● Lesson 5 ● Activity 1
How did you know if a number line had tick marks that represent fractions?
3
Activity Synthesis
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
Fold and Label the Number Line
Unit 5 ● Lesson 5 ● Activity 2
Andre and Clare are talking about how to label fractions on the number line.
Andre says can be labeled like this:
Clare says can be labeled like this:
How could each student’s labeling make sense?
3
Launch
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
Fold and Label the Number Line
Unit 5 ● Lesson 5 ● Activity 2
Andre was thinking about the parts that had length , so he labeled the parts from 0 to and to 1 with .
To locate and label the number we find the endpoint of the first one-half part from 0 and label it.
3
Launch
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
Fold and Label the Number Line
Unit 5 ● Lesson 5 ● Activity 2
Andre says can be labeled like this:
Clare says can be labeled like this:
How could each student’s labeling make sense?
3
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
Fold and Label the Number Line
Unit 5 ● Lesson 5 ● Activity 2
As you fold, discuss your strategies with your partner.
3
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
Fold and Label the Number Line
Unit 5 ● Lesson 5 ● Activity 2
How was partitioning these number lines similar to partitioning our fraction strips?
3
Activity Synthesis
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
To the Number Line
Unit 5 ● Lesson 5
Today we used what we know about fractions to think about where fractions are located on the number line.
What did you learn about locating and labeling fractions on the number line today?
How could we use this length to locate and label the number on this number line?
Locate and label on the number line.
3
Lesson Synthesis
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
Reflection
Unit 5 ● Lesson 5
Describe something you really understand well after today’s lesson or describe something that was confusing or challenging.
3
Cool-down
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.
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3
Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.