Understanding Ratios and Reciprocals

Understanding Ratios and Reciprocals

Assessment

Interactive Video

Mathematics

5th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial covers the concept of dividing whole numbers by unit fractions, specifically focusing on a fifth-grade math problem from the Texas standard 5.3L. The instructor uses a recipe problem to illustrate how to calculate the number of batches of cookies that can be made with a given amount of salt. The video includes visual aids like diagrams and strip diagrams to help students understand the process. It explains the concept of dividing by fractions and how it relates to multiplying by the reciprocal, ultimately solving the problem by showing that 48 batches can be made.

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21 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main topic discussed in the video?

Adding fractions

Subtracting whole numbers

Dividing whole numbers and unit fractions

Multiplying whole numbers

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which standard is being referenced in the video?

4.2 M

6.1 N

3.4 K

5.3 L

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total amount of salt available in the container?

10 teaspoons

8 teaspoons

15 teaspoons

12 teaspoons

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much salt is needed for one batch of cookies?

1/2 teaspoon

1/3 teaspoon

1 teaspoon

1/4 teaspoon

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many batches can be made with one teaspoon of salt?

2 batches

3 batches

4 batches

5 batches

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of batches that can be made with 12 teaspoons of salt?

36 batches

48 batches

24 batches

60 batches

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the pattern used to calculate the number of batches?

Adding 16 each time

Adding 2 each time

Adding 4 each time

Adding 8 each time

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