Division of Whole Numbers by Unit Fractions Using the Multiplicative Inverse

This video tutorial teaches how to divide whole numbers by unit fractions using the multiplicative inverse. It begins with an introduction to the concept, followed by examples using models to illustrate the process. Common mistakes and misconceptions are addressed, emphasizing the importance of understanding the underlying principles rather than relying on memorized algorithms. The tutorial includes detailed examples of dividing by 1/5 and 1/2, demonstrating the use of models to visualize the division process and reinforce the concept of the multiplicative inverse.

What is the result of dividing 12 apples into 2 equal parts?

• 6

• 24

• 3

• 12

When dividing 3 by 1/5, how many parts do you get in total?

• 15

• 20

• 10

• 5

What is a common mistake when dividing whole numbers by fractions?

• Using a model to understand the process

• Memorizing algorithms without understanding

• Visualizing the division

• Using the multiplicative inverse

In the example of 5 divided by 1/2, how many parts does each whole have?

• 3

• 2

• 4

• 1

What is the final answer when dividing 5 by 1/2?

• 12

• 7

• 10

• 5