The teacher uses models to teach equivalent fractions.

The Teacher uses number lines to teach equivalent fractions.

Sal Kahn shows that two fractions are equivalent only if they refer to the same whole.

Sal creates equivalent fractions by dividing a fraction model and number line into smaller parts. [4:12]

Sal uses same-sized wholes to show equivalent fractions. [6:24]

Sal uses number lines and fraction models to show equivalent fractions. [4:01]

Use same-sized wholes to show equivalent fractions. [4:11]

Sal Khan introduces equivalent fractions with pizza.

The focus of this lesson is the nature of a fraction as an equal portion of an entire object. It is 11 of 11 in the series titled "Equal Parts of a Whole."

The focus of this lesson is the nature of a fraction as an equal portion of an entire object. It is 3 of 11 in the series titled "Equal Parts of a Whole."

The focus of this lesson is the nature of a fraction as an equal portion of an entire object. It is 8 of 11 in the series titled "Equal Parts of a Whole."

The focus of this lesson is the nature of a fraction as an equal portion of an entire object. It is 1 of 11 in the series titled "Equal Parts of a Whole."

In this lesson, the student will learn how to create two equivalent fractions by multiplying a fraction by a value of one. It is 10 of 12 in the series titled "Equivalent Fractions."

In this lesson, the student will learn how to create two equivalent fractions by multiplying a fraction by a value of one. It is 3 of 12 in the series titled "Equivalent Fractions."

In this lesson, the student will learn how to create two equivalent fractions by multiplying a fraction by a value of one. It is 4 of 12 in the series titled "Equivalent Fractions."

In this lesson, the student will learn how to create two equivalent fractions by multiplying a fraction by a value of one. It is 5 of 12 in the series titled "Equivalent Fractions."

In this lesson, the student will learn how to create two equivalent fractions by multiplying a fraction by a value of one. It is 6 of 12 in the series titled "Equivalent Fractions."

In this lesson, the student will learn how to create two equivalent fractions by multiplying a fraction by a value of one. It is 8 of 12 in the series titled "Equivalent Fractions."

This lesson will introduce how to develop an equivalent fraction from a given fraction.

The purpose of this lesson is to demonstrate how to represent a fraction. It is 12 of 15 in the series titled "Representing Fractions."

The purpose of this lesson is to demonstrate how to represent a fraction. It is 13 of 15 in the series titled "Representing Fractions."

The purpose of this lesson is to demonstrate how to represent a fraction. It is 1 of 15 in the series titled "Representing Fractions."

In this lesson, the student will learn how to reduce a fraction to its lowest terms by dividing the numerator and denominator by the same value. It is 10 of 13 in the series titled "Simplifying Fractions."

In this lesson, the student will learn how to reduce a fraction to its lowest terms by dividing the numerator and denominator by the same value. It is 11 of 13 in the series titled "Simplifying Fractions."