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How can we determine if Tobie and Torie each have enough lime juice for a party?

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.

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How can we determine if Tobie and Torie each have enough lime juice for a party?

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  1. How can we determine if Tobie and Torie each have enough lime juice for a party?

  2. In this lesson you will learn how to estimate answers to a real world problem involving fractions by using area models.

  3. An area model uses the area of rectangles to help us with fraction problems. = =

  4. 1 2 1 3 Fractions can only be compared when they are based on the same whole. > > Notice that all of these fractions are based on the same whole: the yellow hexagon!

  5. Benchmark fractions are the ones we are most familiar with… 1

  6. Reasonable means to be logical. X Reasonable!

  7. 1. Calculate 2. Estimate 3. Compare 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? YES! 1 full cup 12 = + 6 6 12 12 12

  8. 2. Estimate 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 ? whole cup of lime juice = +

  9. 3. Compare 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? How did we do? Calculated Estimated 1 12 whole cup of lime juice Our answer is reasonable! 12

  10. 1. Calculate 2. Estimate 3. Compare • Tyler drank quarts of milk and Tina drank quarts of milk. How many more quarts did Tyler drink than Tina? - = quart

  11. 2. Estimate • Tyler drank of quart of milk and Tina drank of a quart. How many more quarts did Tyler drink than Tina? ? = = - =

  12. 3. Compare • Tyler drank of quart of milk and Tina drank of a quart. How many more quarts did Tyler drink than Tina? How did we do? Calculated Estimated Our answer is reasonable!

  13. In this lesson you have learned how to estimate answers to a real world problem involving fractions by using area models.

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