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.
