Video Transcript
Emma has five blocks. She put them into two groups and
found that five is two and three. And we can see a picture there of
Emma saying that five is two and three. How else can she make five? Hint: make two groups with five
objects. Five is five and one, five is two
and two, or five is one and four.
This question is all about parts
and wholes. To begin with, we’re told that Emma
has five blocks. This is the whole amount, the total
amount that Emma has. But we’re then told that Emma puts
her five blocks into two groups. She splits them up or partitions
them. And so, instead of having one whole
amount of blocks, she now has two parts. And we can see how she does this in
the picture. We call this sort of a picture a
part-whole diagram. Let’s think about how Emma made her
part-whole diagram.
So, to begin with, Emma had five
blocks. This is the whole amount. And these are the five blocks that
we can see in the top circle. And then, what she did was to split
her five blocks into two groups. What we’ll do is we’ll move our
five blocks into two groups so we can see how she found her answer.
In the first group, she put one,
two blocks. And in the second group, she was
left with one, two, three blocks. And that’s how she knows that five
is two and three. Now, the question asked us, how
else can she make five? And to help us answer the question,
we’re given a hint. We’re told to make two groups with
five objects. Let’s go through each of our three
possible answers to find out which is correct.
Our first possible answer says five
is five and one. Let’s use our part-whole diagram to
see if we can split five into five and one. Our first part needs to be made up
of five blocks. One, two, three, four, five. We’ve used up all of the
blocks. There are five blocks in one part
and zero blocks in the other part. So, we can see that five isn’t five
and one. It’s actually five and zero. Let’s put a little cross by this
statement so that we remember it’s not right.
Our second statement says five is
two and two. Let’s partition our whole amount
into two and two. One, two. One, two. We’ve still got one more block that
we need to split up. Let’s add it to our second
part. We have two in the first part and
three in the second part. We can see that five isn’t two and
two. It’s two and three. Let’s put a cross by that.
We only have one more possible
answer. Can Emma split five blocks into one
and four? Let’s see. One, now, how much is in our second
group? One, two, three, four. We had five objects. And we’ve made two groups out of
them. And so, another way that Emma can
make five is by splitting or partitioning her blocks into one and four. Five is one and four.
