Fraction Division and Models

This video tutorial covers modeling multiplication and division of fractions. It provides examples of multiplying fractions by whole numbers and dividing whole numbers by fractions using visual models. The tutorial also explains how to convert improper fractions to mixed numbers and demonstrates the 'copy, change, flip' method for division. Additionally, it includes a section on dividing decimals by whole numbers, emphasizing the importance of understanding what the models represent.

What is the main focus of the lesson?

• Modeling subtraction and division of fractions

• Modeling multiplication and addition of fractions

• Modeling multiplication and division of fractions

• Modeling addition and subtraction of fractions

How can repeated addition be expressed in terms of multiplication?

• By dividing the fractions

• By subtracting the fractions

• By multiplying the fractions

• By adding the fractions

What does the model with three tall rectangles represent?

• Three-fifths being added twice

• Two-fifths being added three times

• Two-fifths being added twice

• Three-fifths being added three times

How do you convert an improper fraction to a mixed number?

• By multiplying the numerator and denominator

• By adding the numerator and denominator

• By subtracting the numerator from the denominator

• By dividing the numerator by the denominator

In the second example, how many rectangles are used?

• 8

• 5

• 6

• 7

What fraction is shaded in each of the seven rectangles?

• 1/5

• 1/3

• 1/2

• 1/4

What is the result of multiplying 1/3 by 7?

• 6/3

• 7/3

• 5/3

• 4/3

What is the first step in dividing whole numbers by fractions?

• Convert the whole number to a fraction

• Subtract the fractions

• Multiply the fractions

• Add the fractions

How many one-fourths are in five whole rectangles?

• 15

• 30

• 25

• 20

What is the result of 5 divided by 1/4?

• 20

• 30

• 15

• 25