Benchmark Fractions and Rounding

In this video, Mrs. Cox teaches how to round fractions using benchmark fractions of zero, a half, or one. The lesson includes strategies for rounding, such as examining numerators and denominators, and using number lines for visual demonstration. Real-life examples, like estimating pizza portions and lawn mowing, are used to apply these concepts. Advanced fraction scenarios and test practice questions are also covered to reinforce learning.

What are the benchmark fractions used for rounding in this lesson?

• 0, 1/2, 1

• 0, 1/3, 1

• 0, 3/4, 1

• 0, 1/4, 1

If a fraction has a numerator of 10 and a denominator of 11, to which benchmark fraction is it closest?

• 1/2

• Cannot be determined

• 0

• 1

How can you verify the rounding of a fraction using a number line?

• By placing the fraction on the number line and seeing which benchmark it is closest to

• By checking if the fraction is a whole number

• By comparing the fraction to 1/4

• By converting the fraction to a decimal

Which fraction is closer to 1: 12/13 or 2/13?

• 12/13

• 2/13

• Neither

• Both are equally close

Kevin ate 5/12 of a pizza. Is this closer to half or almost all of the pizza?

• Exactly half

• Neither

• Half

• Almost all

Darius mowed 1/5 of his lawn. How much lawn does he have left?

• None

• Half

• Almost all

• Exactly 1/5

If a fraction with a denominator of 4 rounds to 1, what could be the numerator?

• 4

• 1

• 2

• 3

Savannah's quilt squares have side lengths of 5/16 of a foot. Are they closer to half a foot or one foot?

• Neither

• One foot

• Half a foot

• Exactly 5/16

Samantha shaded 3/7 of her design. Which is the best estimate for the shaded part?

• 1/2

• 0

• 1

• 1/7