Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Warm Up:
Change the improper fraction to a mixed
number.
1. 26/3
2. 58/9
Change the mixed number to an improper
fraction.
3. 3 2/5
4. 2 6/7
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Agenda:
1. Notes on Lesson 5­1 Multiplying
Fractions & Whole Numbers
2. Lesson Check
3. BrainPop Video and Quiz
4. Fraction Sense Worksheet
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Launch:
Compare the following:
Without finding the product of each expression, tell which expression has the greater product. Use pictures and words to support your argument.
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Focus Question:
Is multiplying a whole number and
a fraction different from multiplying
a fraction and a whole number?
Explain.
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
Multiply the following. Use a model to
support your work.
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
Write a multiplication equation for the
following model.
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
Example 1: Write a multiplication equation for each
of the following models.
a.)
b.)
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
You can use a model to multiply a
fraction and a whole number. Model the
following:
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
Example 2: The hiking trail around a lake is 4 miles
long. There is a picnic area 2/3 of the way from the
start. Draw a model to show 2/3 × 4. Use the model
to tell how many miles it is from the start of the trail
to the picnic area.
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
General Rule:
equation ­
When
multiplying fractions and whole
numbers:
1. Multiply the fraction's numerator by
the whole number to find the numerator
of the product.
2. Keep the fraction's denominator.
3. If the product is an improper fraction,
rewrite it as a mixed number in simplest
form.
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
Multiply using the general rule:
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
Example 3: Multiply. Write each answer in simplest form.
a.)
b.)
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
Example 3: Multiply. Write each answers in simplest form.
c.)
d.)
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
Example 4: There are 25 students in the music club.
Of those students,
are also in the band. How many
music club students are in the band?
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Lesson 5 ­ 1 Multiplying Fractions & Whole Numbers
Lesson Check:
Multiply. Write each solution in simplest form.
1. 2. 3. 4. 5. Alicia spent 15 minutes making a pizza. Of those minutes were spent rolling out the crust. How many minutes did Alicia spend rolling out the crust?
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Lesson 5­1 Multipying Whole Numbers and Fraction REVISED.notebook November 17, 2016
Classwork:
1. Lesson Check
2. Fraction Sense Worksheet
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