Concept demonstration video [3:52] explains how to find the whole from a part and percent using three methods.

In this video [3:56] contemporary artist Dorothea Rockburne talks about mathematics, magic, and materials for artists. To learn about how art changes over time, enroll in one of MoMA's courses online. Created by The Museum of Modern Art.

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 the means and extremes of a proportion, and demonstrate how to use cross multiplication to determine if two ratios are equivalent. It is 6 of 8 in the series titled "Equivalent Ratios."

This lesson will introduce the means and extremes of a proportion, and demonstrate how to use cross multiplication to determine if two ratios are equivalent. It is 1 of 8 in the series titled "Equivalent Ratios."

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."

This lesson will provide examples that demonstrate how two triangles would be similar by SAS triangle similarity. It is 2 of 5 in the series titled "SAS Triangle Similarity."

This lesson will provide examples that demonstrate how two triangles would be similar by SAS triangle similarity. It is 5 of 5 in the series titled "SAS Triangle Similarity."

This lesson will provide examples that demonstrate how two triangles would be similar by SAS triangle similarity. It is 1 of 5 in the series titled "SAS Triangle Similarity."

This lesson presents how to apply the triangle proportionality theorem to solve for unknown variables and side lengths. It is 5 of 6 in the series titled "Triangle Proportionality Theorem."

This lesson presents how to apply the triangle proportionality theorem to solve for unknown variables and side lengths. It is 6 of 6 in the series titled "Triangle Proportionality Theorem."

The purpose of this lesson is to demonstrate how to represent a fraction. It is 10 of 15 in the series titled "Representing Fractions."

The purpose of this lesson is to demonstrate how to represent a fraction. It is 11 of 15 in the series titled "Representing Fractions."

The purpose of this lesson is to demonstrate how to represent a fraction. It is 14 of 15 in the series titled "Representing Fractions."

The purpose of this lesson is to demonstrate how to represent a fraction. It is 9 of 15 in the series titled "Representing Fractions."

This lesson will provide examples that demonstrate how two triangles would be similar by SAS triangle similarity. It is 4 of 5 in the series titled "SAS Triangle Similarity."

In this lesson, the student will learn how to create two equivalent fractions by multiplying a fraction by a value of one. It is 1 of 12 in the series titled "Equivalent Fractions."