Transcript Module 4 Lesson 30 Divide decimal dividends by non

Module 4 Lesson 30
Divide decimal dividends by non-unit decimal divisors.
Stephen J. O’Connor
[email protected]
ccss5.com
Based upon lessons created by Common Core,Inc
•
Common Core
•
Standards
•
5.OA.1 Use parentheses, brackets, or braces in numerical
expressions, and evaluate expressions with these symbols.
5.NBT.7 Add, subtract, multiply, and divide decimals to
hundredths, using concrete models or drawings and strategies
based on place value, properties of operations, and/or the
relationship between addition and subtraction; relate the
strategy to a written method and explain the reasoning used.
5.NF.7 Apply and extend previous understandings of division to
divide unit fractions by whole numbers and whole numbers by
unit fractions. (Students able to multiple fractions in general can
develop strategies to divide fractions in general, by reasoning
about the relationship between multiplication and division. But
division of a fraction by a fraction is not a requirement at this
grade level.)
Learning
Targets
•
I can divide decimal dividends by non-unit
decimal divisors.
•
Divide Whole Numbers by Fractions and Fractions
by Whole Numbers
•
Divide decimals
•
Equivalent expressions with fractions and division
•
Divide decimal dividends by non-unit decimal
divisors.
• Divide decimal dividends by non-unit decimal
divisors.
Sprint A
Sprint B
Fluency
Practice
How many tenths are in
1?
Fluency
Practice
How many tenths are in
2?
Fluency
Practice
How many tenths are in
3?
Fluency
Practice
How many tenths are in
9?
Fluency
Practice
Write the division sentence
Fluency
Practice
How many tenths are in
20?
Fluency
Practice
How many tenths are in
30?
Fluency
Practice
How many tenths are in
70?
Fluency
Practice
How many tenths are in
75?
Fluency
Practice
How many tenths are in
75.3?
Fluency
Practice
How many tenths are in
0.63?
Fluency
Practice
How many hundredths are in 6.3?
Fluency
Practice
How many tenths are in
63?
Fluency
Practice
How many hundredths are in 630?
Application
Problem
Alexa claims that 16 ÷ 4, , and 8 halves are all
equivalent expressions. Is Alexa correct? Explain
how you know.
Concept
Development
How many tenths are in
2?
Problem 1
Concept
Development
Rewrite this expression as a fraction.
Problem 1
Concept
Development
What’s different about this fraction?
Problem 1
Concept
Development
How can we rename this fraction so
that denominator is a whole number?
Problem 1
Concept
Development
Are there other ways to rename this fraction so
that denominator is a whole number?
Problem 1
Concept
Development
Turn and talk about what you think
the quotient will be.
Problem 1
Concept
Development
Rewrite this expression as a fraction.
Problem 1
Concept
. How will you find an equal fraction with a whole
number divisor? Share your ideas.
Development
Problem 1
Concept
Development
If we multiplied by , what would the
denominator be?
Problem 1
Concept
Development
Multiply by
Problem 1
Concept
Development
What division expression does our
renamed fraction represent and what is
the quotient?
Problem 1
Concept
Development
Check by multiplying
Problem 1
Concept
Development
Turn and talk about what you think
the quotient will be.
Problem 1
Concept
Development
Rewrite as a fraction
Problem 1
Concept
Development
Multiply by
Problem 1
Concept
Development
Solve and check by multiplying
Problem 1
Concept
Development
Solve and check by multiplying
Problem 1
Concept
Development
Rewrite this expression as a fraction.
Problem 2
Concept
. How is this expression different from the ones
we just evaluated?
Development
Problem 2
Concept
Development
How is this expression different from the ones
we just evaluated?
Problem 2
Concept
Development
What should we multiply the fraction
by to make the divisor a whole number?
Problem 2
Concept
Development
Multiply by
Problem 2
Concept
Development
Rewrite as fraction, solve, and check
Problem 2
Concept
Development
Rewrite as fraction, solve, and check
Problem 2
Practice
Concept
Development
Review
Practice
Activate
Knowledge
✔
Check
Understanding
Sprint A
Learning Targets
Teamwork
Application
Problem
Fluency Practice