Dividing by Unit Fractions

Mrs. Nelson introduces sixth-grade students to dividing by unit and non-unit fractions. She explains the concept of unit fractions, which have a numerator of one, and non-unit fractions, which have other numerators. The video demonstrates how to divide numbers by these fractions using diagrams and reasoning with numerators and denominators. The concept of reciprocals is introduced, showing that dividing by a fraction is equivalent to multiplying by its reciprocal.

What is a unit fraction?

• A fraction with equal numerator and denominator

• A fraction with 1 in the numerator

• A fraction with a numerator greater than the denominator

• A fraction with 1 in the denominator

Which of the following is a non-unit fraction?

• 1/2

• 1/10

• 1/127

• 2/3

How do you divide a number by a unit fraction?

• Subtract the fraction from the number

• Add the number to the fraction

• Multiply the number by the reciprocal of the fraction

• Multiply the number by the fraction

What is the result of 6 divided by 1/3?

• 3

• 18

• 2

• 9

How can you find the number of 2/3 in 6?

• Add 6 to 2/3

• Multiply 6 by 3/2

• Multiply 6 by 2/3

• Divide 6 by 2/3

What is the reciprocal of 3/4?

• 3/4

• 1/4

• 1/3

• 4/3

What is the result of 6 divided by 3/4?

• 12

• 8

• 6

• 9

What is the relationship between dividing by a fraction and multiplying by its reciprocal?

• They are the same operation

• They are used in different contexts

• They have no relationship

• They are opposite operations

What is the result of 6 times 3/2?

• 6

• 18

• 12

• 9

What is the objective of the lesson?

• To multiply fractions

• To add fractions

• To subtract fractions

• To divide numbers by unit and non-unit fractions