Video Transcript
Scarlett has shaded parts of the
given whole. Complete the sentences. What out of four equal parts are
shaded? What quarters of the whole is
shaded?
In the picture, we can see a whole
amount, and we’re told that Scarlett has shaded some parts of it. So what do you think the whole
amount is that’s being talked about? It’s this whole rectangle here,
isn’t it? And we can see that the whole of
this long rectangle has been divided into one, two, three, four smaller
rectangles. And they’re all the same size,
aren’t they? They’re equal parts.
Now, we’ve got some sentences about
these parts that we need to complete. But before we do that, let’s take a
moment to look carefully what we’re being asked because we can make a prediction
here. Our last missing number is the top
number in a fraction. Now, we know that the top number in
a fraction is called the numerator. Do you remember what this
represents? It’s the number of parts that have
been selected.
Well, in this particular question,
we’re talking about shaded parts. So why don’t we change our
definition? The numerator is the number of
shaded parts. Now, if we come back up and look at
our first missing number, we also need to write down the number of shaded parts,
this time as a sentence. So even if we’d never seen this
diagram, we’d be able to predict one thing. Our two missing numbers are going
to be exactly the same, aren’t they?
Alright, let’s get answering this
question. So our first sentence says, what
out of four equal parts are shaded? One, two out of four equal parts
are shaded. Now, because the whole amount has
been divided into four equal parts, we know we’re talking about quarters. And that’s why the denominator or
the bottom number in this fraction is four. Did you notice when we read the
question we said “what quarters”? As we’ve said already, the missing
number then is the numerator. The number of shaded parts is
two. So we can say two-quarters of the
whole is shaded. Two out of four equal parts are
shaded. Two-quarters of the whole is
shaded.
