how can we determine if tobie and torie each have enough lime juice for a party?
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How can we determine if Tobie and Torie each have enough lime juice for a party?. In this lesson you will learn how to estimate answers to a real world problem involving fractions by using area models. An area model uses the area of rectangles to help us with fraction problems. =. =. 1. 2. - PowerPoint PPT PresentationTRANSCRIPT
How can we determine if Tobie and Torie each have enough
lime juice for a party?
In this lesson you will learn how to estimate answers to a real world
problem involving fractions by using area models.
Let’s Review
An area model uses the area of rectangles to help us with fraction problems.
= =
Let’s Review
Fractions can only be compared when they are based on the same whole.
12> >
13
Notice that all of these fractions are based on the same whole: the yellow hexagon!
Let’s Review
Benchmark fractions are the ones we are most familiar with…
1
Core Lesson
Reasonable means to be logical.
Reasonable!
X
Core Lesson
Tobie and Torie each have a lime. They need a cup of lime juice to make salsa for a party. Tobie squeezes a cup
from his and Torie squeezes a cup from his. How much lime juice do they have? Is it enough?
1. Calculate 2. Estimate 3. Compare
1 full cup YES!612
612
1212+ =
Core Lesson 2. Estimate
+ = 1whole cup of lime juice
Tobie and Torie each have a lime. They need a cup of lime juice to make salsa for a party. Tobie squeezes a cup
from his and Torie squeezes a cup from his. How much lime juice do they have? Is it enough?
?
Core Lesson 3. Compare
Calculated Estimated
1whole cup of lime juice
How did we do?
How did we do?
Our answer is reasonable!
Tobie and Torie each have a lime. They need a cup of lime juice to make salsa for a party. Tobie squeezes a cup
from his and Torie squeezes a cup from his. How much lime juice do they have? Is it enough?
1212
Core Lesson
Tyler drank quarts of milk and Tina drank quarts of milk. How many more quarts did Tyler drink than Tina?
1. Calculate 2. Estimate 3. Compare
quart- =
Core Lesson 2. Estimate
Tyler drank of quart of milk and Tina drank of a quart. How many more quarts did Tyler drink than Tina?
= = - = ?
Core Lesson 3. Compare
Calculated Estimated
How did we do?
How did we do?
Our answer is reasonable!
Tyler drank of quart of milk and Tina drank of a quart. How many more quarts did Tyler drink than Tina?
In this lesson you have learned how to estimate answers to a real world problem involving fractions
by using area models.