Multiplying Whole Numbers by Fractions on a Number Line

Jeremy Burer, a fifth-grade STEM teacher, explains how to multiply whole numbers by fractions using a number line. He demonstrates setting up the number line, dividing it according to the fraction's denominator, and making jumps to calculate the result. The video covers converting between improper fractions and mixed numbers.

Who is the instructor in the video?

• Emily Davis

• Jane Smith

• John Doe

• Jeremy Burer

What is the equation given at the start of the video?

• 4 * 3/4

• 4 * 2/4

• 3 * 3/4

• 3 * 2/4

Tags

CCSS.5.NF.B.4A

What is the first step in setting up the number line?

• Start with the fraction

• Start with the whole number

• Start with one

• Start with zero

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

How many whole numbers are placed on the number line in this example?

• Five

• Three

• Two

• Four

Tags

CCSS.2.MD.B.6

Into how many parts should each whole number be divided?

• Two

• Five

• Three

• Four

Tags

CCSS.1.G.A.3

What is the next step after dividing the whole numbers into parts?

• Jump according to the numerator

• Jump according to the denominator

• Jump according to the whole number

• Jump according to the fraction

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

How many times do you jump on the number line in this example?

• Three times

• Five times

• Two times

• Four times

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

What is the improper fraction obtained in the example?

• 10/4

• 9/4

• 11/4

• 8/4

Tags

CCSS.3.NF.A.3C

What is the mixed number equivalent of 9/4?

• 2 and 1/2

• 2 and 1/3

• 2 and 1/5

• 2 and 1/4

What is the purpose of using a number line in this example?

• To add fractions

• To subtract fractions

• To multiply whole numbers by fractions

• To divide fractions

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B