Video Transcript
Comparing Groups by Counting up to
10
In this video, we’ll learn how to
compare two groups of up to 10 objects. And we’re going to do this by
counting how many objects there are in each group. Many beasts are always good to
count. Here we have two groups of many
beasts. We have a group of snails and a
group of wriggly earthworms. But which group contains the
greatest number of many beasts? Which is the largest group? We can compare groups of objects or
many beasts like this by using counting. First of all, let’s count up a
group of snails. So that we know which snails we’ve
counted, we could put an orange counter next to each one. There are one, two, three, four,
five, six snails.
To represent the number six, we
could move our six counters and put them on a 10-frame. We’ve made a full row of counters
with one extra counter underneath. Another way to show the number six
and how many snails there are is using a number track. We could even draw an arrow to show
the number of snails on our number track. We counted six snails. Now, let’s do the same with our
earthworms. How many are there? We can count one, two, three, four,
five, six, seven. There are seven earthworms. Let’s move our counters like before
and model this number seven using a 10-frame.
Just like the number six, we can
see one full row of counters. But instead of one extra counter
underneath, we now have two extra counters. There are more counters on this
10-frame. Seven is more than six. And you know we can show this on
our number track too. When we’re counting from one to 10,
we say the number seven after we say the number six. And this means that the number
seven is a larger number. So, which group of many beasts is
the largest? The worms are the largest
group. We know this because the number
seven is larger than the number six. It’s time to put into practice what
we’ve learned. Let’s try some questions where we
have to compare groups by counting up to 10.
Count the carrots. Which group has the greatest
number of carrots?
In the picture, we can see two
groups of carrots. And we know that we need to
compare them because we’re asked, which group has the greatest number of
carrots? In other words, which group has
more carrots than the other one? How are we going to find the
answer? Well, we’re told how to do so
in the first sentence. We’re told to count the
carrots. So, let’s do that. And as we count each number, we
could put a counter on a 10-frame. 10-frames can be a useful way
to help us to compare numbers and to represent them. Let’s begin by counting our
first group of carrots then. We can see one, two, three,
four, five carrots in the first group. If we look at our 10-frame, the
number five is shown by one full row of counters.
Now, how many counters are in
our second group of carrots? One, two, three, four, five,
six. Our second group of carrots
contains six carrots. Look how the number six is
represented on a 10-frame. We have one full row of
counters, just like before, but we also have another counter underneath. Six counters are more than five
counters. This means we know that six
carrots are more than five carrots. Six is more than five. Five is less than six. And so, the group that has the
greatest number of carrots is the one that contains six carrots.
Count the cupcakes. Which group has the least
number of cupcakes?
In the picture, we can see two
groups of cupcakes. Perhaps they’re sitting on two
trays at the baker’s. We’re asked to compare these
two groups together because we’re asked, which group has the least number of
cupcakes? In other words, which group
contains less cupcakes than the other? We can compare two groups
together by counting. And that’s why we’re asked to
count the cupcakes. Let’s use a number track to
help us count. We could move an orange counter
along our number track as we count each cupcake in our first group. There are one, two, three,
four, five, six, seven, eight, nine. Our counter has made it all the
way along to number nine on our number track. We can say that there are nine
cupcakes in the first group.
How many cupcakes are there in
the second group? We’ll use a different colored
counter this time. There are one, two, three,
four, five, six. There are six cupcakes in the
second group. Now that we’ve counted both
groups, we can answer the question. Which group has the least
number of cupcakes? If we look at our number track,
we can see that the number nine is further along than the number six. If we’re counting, the number
nine comes a little bit after the number six. And we know that when we say a
number after another number, it’s larger. So, we can say that nine is
more than six. Six is less than nine. So, which group has the least
number of cupcakes? It’s the group that contains
six cupcakes. Six is less than nine.
Which groups have the same
number of fruits?
When two groups contain the
same number, we can say that they are equal. And this question is getting us
to look at the groups of bananas and strawberries and to find which groups are
equal, which are the same size. We’ve got three possible
answers to choose from. Is it these groups? Or maybe these groups are
equal? What about these groups? To find the answer, we’re gonna
have to count the number of bananas and strawberries each time. Let’s start with our first pair
of groups. How many bananas are there? We can count one, two, three,
four, five, six bananas. Let’s write the digit six to
remind us that there are six bananas.
Now, let’s count the group of
strawberries. We can see one, two, three,
four, five, six. This is not gonna be the same
number, is it? Seven, eight strawberries. The numbers six and eight are
different. The groups don’t contain the
same number of fruits. Six is less than eight. Eight is more than six. They’re not the same. Let’s try comparing our second
pair of groups. First, bananas. There are one, two, three,
four, five, six, seven, eight, nine, 10 bananas. We can write a one and a zero
to show the number 10. How many strawberries are
there? This looks very similar to the
group of strawberries above. There are one, two, three,
four, five, six, seven, eight. So, we have 10 bananas and
eight strawberries.
Do these groups have the same
number of fruits? No, the number 10 and the
number eight are different numbers. We know that eight is less than
10. 10 is more than eight. These groups are not the
same. There’s only one possible
answer left. Let’s hope this pair of groups
is the same. We can count one, two, three,
four, five, six, seven, eight, nine, 10 bananas. Now, if our second group is the
same, how many strawberries should there be in it? Well, we need that to be
10. Let’s count our
strawberries. One, two, three, four, five,
six, seven, eight, nine, 10. Look how the numbers are the
same. We have 10 bananas and 10
strawberries. These groups are equal. The groups that show the same
number of fruits are those that show 10 bananas and 10 strawberries.
So, what did we learn in this
video? We’ve learned how to compare groups
of up to 10 objects. And the way we’ve done this is by
counting the number in each group.
