Lesson video

Hello, my name is Miss Coe.

I am so excited to be learning with you today and I know that we are going to do brilliantly.

Welcome to today's lesson from the unit, Counting, Recognising and Comparing Numbers Within 10.

This lesson is called, Counting Different Groups, and you're going to be learning all about how to count when you have a group of objects.

By the end of this lesson, you will be able to count out from a larger group to form a new group and explain that the last number counted tells you how many there are in the group.

We are going to work really, really hard together today, but I am here to help and we can learn together.

In the lesson today, we'll be using the following words.

I am going to say them and I would like you to say them back to me.

Are you ready? Count out.

Good job.

How many? Well done.

Group.

Great job.

See if you can spot when I use these in our lesson today.

So our lesson today has two separate sections.

We're going to start by counting out an amount from a larger group and then we're going to look at counting out from different starting points.

So let's begin.

Imagine that I'm in your classroom and I need to put four pencils into a pot, but, as I'm sure you can imagine, I have lots of pencils.

So I have a group of pencils there, but I can count out how many pencils I need.

I need to put four pencils in a pot.

Let's count together.

Are you ready? 1, 2, 3, 4.

The last number in our count tells us how many are in the new group.

So how many pencils did we count out? 1, 2, 3, 4, the last number I said was four.

We counted out four pencils.

Now let's imagine a different scenario.

Imagine it's lunchtime and I need pieces of fruit for lunchtime for my class.

I don't have the exact number of pieces of fruit that I need, I have a pile of fruit, but I can count out how many pieces of fruit I need.

Hmm, I need nine pieces of fruit for lunchtime.

Count with me.

Are you ready? 1, 2, 3, 4, 5, 6, 7, 8, 9.

Well done.

Remember, the last number in our count tells us how many there are in the new group.

How many pieces of fruit did we count out? Well, the last number I said in our count was nine, so we counted out nine pieces of fruit.

Now I'd like you to have a go.

I would like you to find a pile of things.

So you might have cubes or counters or you might have things like buttons or pencils.

What I would like you to do is, from a pile of things, I would like you to count out first, three objects, and then I would like you to count out eight objects.

Remember, the last number you say tells you how many in your group.

Pause the video if you need to and have a go.

Excellent job.

Let's have a look.

You might have counted out three apples if you had apples on your table.

So I would count 1, 2, 3.

The last number in our count tells us how many in the group.

I counted out three apples.

You might have counted out cubes, so here I have eight cubes.

The last number in our count tells us how many objects there are.

I counted out eight cubes.

Great job with whatever you were counting out.

Now we're going to have a go on our own.

So again, thinking out about your group of objects, you might have cubes, but you might have something else.

I would like you to pause the video and have a go at making groups of your own.

For the first example, I would like you to count out three cubes to make a group, and I would like you to say, "I counted out mm cubes each time." Remember, the last number you say tells you the number in your group.

Then I would like you to count out seven cubes to make a group.

And then I would like you to work with a partner.

If you don't have a partner, you can talk to me.

I would like you to count out a number to make a group, and then, "Do you agree? Are you sure that you have that number of cubes?" Pause the video now and have a go.

Excellent job, everybody, I am so impressed at your counting out skills.

So you might have counted out cubes, you might have counted out something else, but I counted out three cubes, 1, 2, 3.

The last number I said tells us the number in the group.

There are three cubes.

I did the same with seven cubes.

The last number I said was seven, so there are seven cubes.

And then you might have chosen different numbers.

So in this scenario, one person in the pair counted out five cubes to make a group and their partner checked the last number in their count was five, and so there are five cubes.

Really well done, everybody.

So now we're going to look at counting different groups, but this time we are going to start our count from different starting points.

In this scenario, we don't always need to count out from one.

So I need to put seven pencils on the table.

There are already two pencils on the table.

I have a big group of pencils.

I need to put seven on my table and there are already two pencils on the table.

So how many pencils are already on the table? That's right, there are two pencils on the table already.

I need seven pencils, so the next number I'm going to say is three.

Count with me.

Are you ready? 3, 4, 5, 6, 7.

The last number in our count tells us how many are in the new group.

So tell me, how many pencils are on the table? Great job.

The last number we said was seven, so there are seven pencils on the table.

Well done.

And we might count out different things, so we don't need to start by counting out from one.

This time I need a group of six cubes.

There are already four cubes in my group.

I can count out from the number of cubes.

I need six cubes in my group.

So I have four cubes, my next number is five.

Are you ready to count with me? 5, 6.

The last number in our count tells us how many in the new group.

Tell me, how many cubes are in my group? Excellent, the last number we said was six, so there are six cubes in the new group.

Great job.

So now it's your turn to think about this question.

I'm going to show you some pictures.

There are already two cubes in a group.

We need five cubes.

So two children have had a go at this question and I want you to tell me who is correct.

So the first one says, "There are five cubes in my group." The second one also says, "There are five cubes in my group." So there are already two cubes.

We need five cubes.

Talk to your partner or tell me, who is correct? Excellent job if you said A is correct.

If we start our count from 2, 3, 4, 5.

The last number we say tells us how many in our group.

So A has five cubes in the group.

Excellent work.

Let's have a little think about the mistake that Laura made.

So if we look at her picture, she says there are five cubes in her group.

Have another look at her picture and have a little think.

What mistake could Laura have made? Well done if you said that Laura started her count from one, so she counted 1, 2, 3, 4, 5.

But there are already two cubes in her group, so Laura should have started her count from three and counted 3, 4, 5.

Laura has too many cubes in her group.

Well done if you said that.

Now I would like you to have a go at a couple of tasks and I know that you are going to do brilliantly at this.

For each question you have a starting number of cubes and we know how many cubes we need, so you need to count out the cubes.

Let's look at the first example.

I have three cubes.

I need four cubes.

We need to count out the cubes.

So think about the number that you're starting from.

Hmm, I have three cubes.

And think about the number that you're going to finish on.

Remember, the last number we say tells us the number in our group.

So think about if we have three cubes, what is our next number going to be and what is the last number that we need to say to have four cubes in our group? For the second question, we have three cubes, but this time we need eight cubes.

And then for the third and the fourth question, we have one cube each time and we need a different number of cubes.

Once you've had a go at those, I would like to set you a challenge.

So in this example, our sentence is, "I have mm cubes, I need mm cubes." I would like you to make up your own examples.

So you might say, "I have two cubes, I need seven cubes," and I want you to show me with your cubes where you're starting from and the last number in your count.

And you need to be really careful here, you need to check how many cubes are in your group.

And my challenge for you is, how many ways can you find to complete this task? Pause the video now and have a go.

Excellent work, everybody, I am so impressed at your counting out skills.

Let's have a look at these answers and I know that you will have got this.

So in our first example, I have three cubes and I need four cubes.

I already have three cubes, our next number is going to be four.

Oh, we only needed four cubes, so I'm stopping there because the last number we say tells us the number in our group.

There are four cubes in the group.

Our second example, I have three cubes and I need eight cubes, so yours might have looked something like this.

And we say, "There are eight cubes in the group." Moving on, this time we have one cube and we need three cubes, so your example might have looked like this, "There are three cubes in the group." Finally, I had one cube and I needed eight cubes.

Your example might have looked like this and you would've said, "There are eight cubes in the group." Well done.

Now for our challenge, you may have done this in lots of different ways.

I decided to say, "I have two cubes and I need seven cubes." I counted out my cubes.

I had two cubes, so my next number was 3, 4, 5, 6, 7.

I have seven cubes in my group.

Well done if you found lots of different ways to answer this.

So you have worked incredibly hard in this lesson.

I'm really proud of all the learning that you have done today.

We now know that when we count out objects, the last number we say tells us the number in the new group, and we also know that when we count out objects, we don't have to start from one.

Really well done, and I look forward to seeing you again.