Lesson Video: Quarters | Nagwa Lesson Video: Quarters | Nagwa

# Lesson Video: Quarters Mathematics • 1st Grade

In this video, we will learn how to divide shapes into four equal parts, name each part as a quarter, and tell the number of quarters in a whole.

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### Video Transcript

Quarters

In this video, we will learn how to divide shapes into four equal parts, name each part as a quarter, and tell the number of quarters in a whole. Here’s a circle. We could divide the circle into four equal parts. Each of the parts is exactly the same size. We call each of these equal parts a quarter or a fourth. We could also divide the circle into four equal parts in this way. Each part is still called a quarter or a fourth.

Has this circle been divided into four equal parts? It has been divided into four parts, but they’re not equal. These parts are not quarters. Remember, we can only call the parts quarters if they’re equal. In other words, are the parts all the same size?

We could also divide this rectangle into four equal parts like this, like this, this way, or even this way. When we divide a shape into four equal parts, we call each part a quarter or a fourth. So, this square has been divided into quarters, and this one hasn’t because the parts are not equal. Let’s practice identifying quarters.

Which shape is not cut into quarters?

We’re shown three different shapes. We have to find the shape which is not cut into quarters. What do we know about quarters? When we cut a shape into four equal parts, we call each part a quarter. The first shape has been cut into four parts, but are they equal? Are they the same size? No, they’re not. Each part is a different size.

The circle has been cut into four equal parts. So, has the rectangle. So, this is the shape which has not been cut into quarters. Quarters are equal parts. These parts are not equal.

Pick one way to divide a rectangle into quarters.

When we divide a shape into quarters, we’re dividing it into four equal parts. Which of these rectangles has been divided into four equal parts? The first rectangle has been divided into four parts, but they’re all different sizes. They’re not equal.

The second rectangle has also been divided into four parts. And each part is equal in size. Each part is the same size. This is the rectangle which has been divided into quarters. It has four equal parts. Like the first rectangle, this rectangle has been divided into four parts, but each part is a different size. The rectangle which has been divided into quarters is the one in the middle.

Daniel has cut this pizza into equal shares. How many equal shares did he cut? Each slice is a fourth of the pizza. Complete, the whole pizza is made of what fourths.

Daniel has cut his pizza into equal shares. In other words, his pizza has been cut into equal parts. We’re being asked, how many equal parts or shares did he cut? There’s one, two, three, four.

We need to complete the missing part of the sentence. We need to work out how many fourths there are in a whole pizza. If each slice of the pizza is a fourth, then the whole pizza has four fourths. Daniel cut his pizza into four equal shares. Each share is a fourth, and the whole pizza is made of four fourths.

What have we learned in this video? We’ve learned how to divide shapes into four equal parts. And each part is called a quarter or a fourth. We’ve also learned that there are four quarters or four fourths in a whole. We took the whole shape and divided it into four equal parts.