Equivalent Fractions
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Transcript of Equivalent Fractions
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April 27, 2015
I can place whole number fractions and unit fractions on a number line diagram.I can recognize and show that equivalent fractions have the same size, though not necessarily the same shape
Objective:
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CHAMPS:
C=conversation: 0 (when listening)
1 (with a partner)
H=help: Raise your hand
A=activity: Math lesson
M= movement: At desks
P= participation: Whole Group,
Small Group Showdown
S= Success!!
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Placing Whole Numbers and Unit fractions on a number line : (3 minutes)
1 20 3
1 20 3
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Application Problem: (8 minutes) Personal Whiteboards
Max ate 2/3 of his pizza for lunch. He wanted to eat a small snack in the afternoon, so he cut the leftover pizza in half and ate 1 slice. How much of the pizza was left? Draw a picture to help you think about the pizza.
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Concept Development: (35 minutes)
I can recognize and show that equivalent fractions have the same size, though not necessarily the same shape
Model 1
Model 2Model 3
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Model 3 Model 4
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Model 5
Model 6
There are ____ equal parts.
____ parts are shaded.
The fraction shaded is _____.
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Team Problem Solving:
#3#2
#1 #4
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Ann has 6 small square pieces of paper. 2 squares are grey. Ann cuts the 2 grey squares in half with a diagonal line from one corner to the other.
a. What shapes does she have now?
b. How many of each shape does she have?
c. Use all the shapes with no overlaps. Draw at least 2 different ways Ann’s set of shapes might look. What fraction of the figure is grey?
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Laura has 2 different beakers that hold exactly 1 liter. She pours 1/2 liter of blue liquid into Beaker A. Shepours 1/2 liter of orange liquid into Beaker B. Susan says the amounts are not equal. Cristina says they are. Explain who you think is correct and why.
AB
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Debrief:
Earlier, you learned that equivalent fractions are at the same point on the number line. How did your understanding of
equivalent fractions change today?
My understanding of equivalent fractions changed today because ________.
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Did we meet our objectives?I can place whole number fractions and unit fractions on a number line diagram.
1 20 3I can recognize and show that equivalent fractions have the same size, though not necessarily the same shape
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