Understanding Benchmark Fractions and Estimation

Understanding Benchmark Fractions and Estimation

Assessment

Interactive Video

Mathematics

5th Grade

Practice Problem

Hard

Created by

Thomas White

FREE Resource

This video tutorial covers the fifth-grade math standard of solving word problems involving fractions with unlike denominators. It emphasizes understanding benchmark fractions like 1/2 and using number sense to assess the reasonableness of answers. The video introduces visual and numerical strategies to determine if fractions are greater or less than 1/2, using examples on a number line and through numerical doubling. It also applies these strategies to real-world problems, demonstrating how to judge if combined fractions meet a whole number requirement.

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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of the video tutorial?

Exploring geometric shapes

Learning multiplication tables

Understanding benchmark fractions

Solving algebraic equations

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you determine if 34 plus 25 is more than 100 without solving?

By estimating using benchmark numbers

By using a calculator

By comparing each number to 50

By adding them directly

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a benchmark fraction?

A fraction that is always more than 1

A fraction that is always less than 1

A fraction that is equal to 1

A fraction used to compare other fractions

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you visually determine if 5/8 is greater than 1/2?

By using a number line

By drawing a pie chart

By using a calculator

By comparing to 1/4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of doubling the numerator of 2/4?

It becomes a whole number

It becomes less than the denominator

It equals the denominator

It becomes greater than the denominator

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is 7/11 considered greater than 1/2?

Because 7 is less than 11

Because doubling 7 does not fit into 11

Because 7 is a prime number

Because 11 is a prime number

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example with Shirley, why doesn't she have enough candy?

Because she has more than enough

Because she needs more than 2 pounds

Because 3/7 and 1/5 are both less than 1/2

Because she only has 1/2 pound of candy

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