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Day 4: Common Core 4th Grade Mathematics Domain 3 - Day 1 - Fractions and Decimals (Equivalent & Comparing)

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Heather Scott

on 5 May 2015

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Transcript of Day 4: Common Core 4th Grade Mathematics Domain 3 - Day 1 - Fractions and Decimals (Equivalent & Comparing)

FRACTIONS AND DECIMALS
Equivalent fractions and comparing fractions and decimals
On the FOURTH day of Math Review my teacher taught to me...
FRACTIONS AND DECIMALS
3 - Traditional Algorithms

2 - Place Value and Whole Numbers

1 - And what the operations mean
HOMEWORK
What is a fraction?
Parts of a Fraction
What are these parts called?
Naming Fractions
total # of pieces
# of pieces we care about
Name the shaded part of these fractions.
Draw me a fraction that represents 3/4
What is an equivalent fraction?
How do you find equivalent fractions?
Fractions that represent the SAME amount. Equivalent - think EQUAL
Multiply or divide the numerator (top #) and denominator (bottom #) by the same number
What fraction does NOT belong?
Now find a fraction equivalent to 3/7
What about finding an equivalent fraction with a specific numerator or denominator?
Find 3/4 = ?/8.
Be able to explain your steps!
Can you find the equivalent fractions?
Comparing Fractions
If the DENOMINATORS are the SAME, but the numerators are DIFFERENT...
Some examples:
What's the rule?
If the denominator is the SAME, the fraction with the greater numerator is GREATER
If the NUMERATORS are the SAME, but the denominators are DIFFERENT...
Some examples:
What's the rule?
If the numerator is the SAME, the fraction with the greater denominator is SMALLER
For other fractions...
Find equivalent fractions so your fractions have like denominators
OR Use 0, 1/2, and 1 as "benchmarks" to compare.
What's the connection??
The Name Game
Just a reminder...
Can you TELL me the names of these decimals?
0.3
1.7
0.38
0.01
WRITE these decimals
four
hundredths
eight
tenths
five and
sixteen
hundredths
Now make that connection!
Comparing Decimals
Homework
Full transcript