Understanding Multiplication of Whole Numbers and Fractions

This video tutorial explains how to multiply whole numbers with fractions using fraction bars. It covers two examples: three times one-fourth and four times three-fifths. The tutorial demonstrates how to model these products using fraction bars, write multiplication sentences, and convert improper fractions to mixed numbers. The lesson aims to help students understand the concept of multiplying fractions and whole numbers through visual models.

What is the purpose of using fraction bars in this lesson?

• To add fractions

• To model the product of a whole number and a fraction

• To divide fractions

• To subtract fractions

How do you model three times one-fourth using fraction bars?

• By shading the entire bar

• By using three bars each divided into four parts and shading one part in each

• By shading three parts of a bar divided into four

• By drawing one bar divided into three parts

What is the multiplication sentence for three times one-fourth?

• Three-fifths

• Four-thirds

• One-fourth

• Three-fourths

What does four times three-fifths represent?

• Three copies of one-fourth

• Four copies of three-fifths

• Four copies of one-fifth

• Three copies of four-fifths

How do you model the fraction three-fifths using fraction bars?

• By dividing a bar into five parts and shading two

• By dividing a bar into four parts and shading three

• By dividing a bar into five parts and shading three

• By dividing a bar into three parts and shading two

How many copies of one-fifth are there in four times three-fifths?

• Twelve

• Eight

• Ten

• Fifteen

What is the improper fraction for four times three-fifths?

• Twelve-fifths

• Ten-fifths

• Eight-fifths

• Four-fifths

How many copies of one-fifth make one whole?

• Five

• Four

• Three

• Six

What is the mixed number equivalent of twelve-fifths?

• Two and one-fifth

• Three and two-fifths

• Three and one-fifth

• Two and two-fifths

Which of the following statements is true about the products of four times three-fifths?

• Both twelve-fifths and two and two-fifths are correct

• Neither is correct

• Only twelve-fifths is correct

• Only two and two-fifths is correct