# Lesson video

In progress...

Hello, my name is Miss Robson.

In this lesson, we're going to be working on recognising the number bonds to nine and 10.

We are going to start by looking at the number bonds that make up nine.

Then look at the number bonds to 10.

Then we're going to explore that number bonds can have more than just two parts, and then it will be your turn to do a bit of an investigation about the number bonds that make up 10.

For this lesson, you will need 10 things that you can use to break up and make the different parts of your number bonds.

I'm going to be using a bead string, but you can use cubes or Lego or beads, whatever you have around.

Pause the video now to collect the things that you need.

And when you're ready, press play.

We're going to first start by investigating our number bonds to nine.

I'm going to use my bead string and as you can see on the screen, there is a part whole model.

Nine is the whole, and we're going to be investigating the two different parts that we can make that make up nine.

So if you look at my bead string, I have all nine beads.

One, two, three, four, five, six, seven, eight, nine, and I've got quite a lot of string left so that I can move them around.

I'm going to start with them down here and I'm going to have, I'm going to start with nine plus zero equals nine.

Every time we say one of our number bonds, I'd like you to join in with saying the whole sentence that goes with it.

So nine plus zero equals nine.

Can you join in? Nine plus zero equals nine.

Fantastic.

So now I'm ready to move one up to the top.

So now I have one and eight makes nine.

Your turn? One and eight makes nine.

Excellent.

I'm going to move one more up.

Two and seven makes nine.

two and seven makes nine.

Three and six makes nine.

Three and six makes nine.

Four and five makes nine.

Four and five makes nine.

I'm working systematically by moving one at a time to explore all of the different possibilities of having two parts of nine, but also stopping to say the full sentence each time is going to help it really lodge in my memory, all of the different parts of nine.

Five and four makes nine.

Five and four makes nine.

Six and three makes nine.

Six and three makes nine.

Seven and two makes nine.

Seven and two makes nine.

Eight and one makes nine.

Eight and one makes nine.

So each time that I'm doing my number bonds, I'm moving one of the beads, but I'm not taking any away or adding anymore.

So the whole remains as nine.

I've got one more number I'm left to do.

Nine and zero makes nine.

Nine and zero makes nine.

If you would like to practise some more, pause the video here and have a go using your own things to make the different groups of nine.

Each time that you make a new group, you can say the full sentence to help it stick in your memory.

Now we're going to look at the number bonds to 10.

On the screen I can see some green boats arranged into two groups.

Can you count and find out how many are in each group? Both groups have five boats.

They are the same size.

So five and five makes 10.

Here's ten: one, two, three, four, five.

Five and five makes 10.

And because they're the same size, I can check by doing this and folding it in half.

Five and five makes 10.

Here's a slightly different representation of 10: still 10 boats altogether.

In fact, I'm going to count just to check.

One, two, three, four, five, six, seven, eight, nine, 10.

Fantastic.

Still 10 boats.

But this time they're arranged in some different ways.

What number bonds can you see? I can see a few different ways of making 10 using these boats arranged like this.

Let me show you two of the ways that I've seen.

I've drawn a circle around the top row.

In that top row are five boats.

One, two, three, four, five.

In the bottom row are five boats too.

So that's the same as the last representation we looked at where they were in groups of five, but this time they're in rows of five.

If I then look across and down, I can see that they are in groups of two.

So two and two and two and two and two makes 10.

Two and two and two and two and two.

So that's one, two, three, four, five groups of two.

Still 10 beads altogether, still 10 boats altogether.

But when we look at them like this, we can see that five groups of two makes 10.

So the boats have just shown us that we can have more than just two parts.

In fact, that one had five parts.

On the screen you can see a part whole model that has nine in the whole, and one of them has two parts and the other three parts.

Number bonds and numbers can have two parts, three parts, four parts, five parts, six parts, even 10 parts.

You can have as many parts as you need, and you can draw onto your part whole model to add more parts if your part whole model only has two.

We're going to investigate some of the ways that we can make up nine with more than just two parts.

Because when we first did that, we only used the beads and I separated them into two groups didn't I? I worked systematically through the two groups, but here we can see that there are more than two groups that we could have.

So I'm going to show you some of the ways that I can make nine with more than two groups.

So here I have my nine counters that I'm going to be using to represent the different parts of nine and the number nine here.

Now in the picture, there were three parts.

So let's start by trying to find three parts of nine.

So I'm going to have one group at the top here.

I'm going to have another one in the middle and one more on the bottom.

So here I've made one, two, three groups of nine.

Let me draw those parts.

So I've got two as a part, I've got three as a part and I have four as a part.

So nine is the whole.

Two is a part, three is a part, four is a part.

Let me try and find a different arrangement.

So I'm going to try and keep three parts, but let me remove their numbers.

Okay.

So still trying to arrange them into three groups but this time I'm going to try a different arrangement.

What can I do with this? I want them all to look the same.

Let's see if we can do that.

I've got three as a part, three as a part, three as a part.

That one's easy.

So nine can be broken up into three, three and three.

Nine is the whole three is a part, three is a part, three is apart.

What about, let's try one more.

And this time I'm going to have more than just three parts.

So let's rub.

Okay.

So I'm going to have.

Hmm, two is a part, two is a part, two is a part, and three is a part.

This time I have four parts.

So I'm going to draw one more at the top here.

I've got two as a part, two as a part, two as a part and three as a part.

The whole is still nine.

I haven't taken any counters away or added any more, but I've managed to split this into four parts.

I wonder if I could split it into five parts.

I might leave that investigation for later on.

And you're going to arrange them in some different ways.

On the screen is an example of how the boats have been arranged.

Altogether there are 10 boats, but the way that they have arranged them in that almost rhombus shape, a bit like a diamond, the way that they've arranged them, they have one boat at the top, then two boats, then three boats, then two boats, then one and one.

I can do that with my beads.

One boat, then two boats, then three boats, then two boats, then one and one.

So if I look at it that way, there you go.

So one boat, two boats, three boats, two boats, one, one.

I've arranged them the same way that they have.

Then they've drawn this amazing part whole model to go with it.

10 is the whole, one is a part, two is a part, three is a part, two is a part, one is a part, one is a part.

How many different parts do they have there? They have one, two, three, four, five, six.

They have six parts to their whole of 10.

Your job is going to be to come up with some creative ways to split 10 into different parts.

Now you probably don't have a part whole model that looks like this.

So you might need some paper to draw on to draw out all of the different parts that you would like to create.

But you're also going to have to arrange your objects to show those different parts.

On your task sheet there are a couple of examples of how you could arrange your 10 things, And then you're going to come up with some different ways yourself.

Let me show you my favourite arrangement that I made.

I have my 10 counters, which I can count in twos.

Two, four, six, eight, 10 to check that I have them all.

Let me show you my favourite arrangement that I managed to make.

Then I put two, then I put one, then I put two, then I put one, then I put two and then and then it's like a repeating pattern.

Two is a part, ooh sorry.

One is a part, two is a part, one is a part, two is a part.

One is a part, two is a part, one is a part.

Let me draw that for you.

So the whole is 10.

There are 10 altogether.

And what I'm going to do is I'm going to draw one, two, three, four, five, six, seven parts.

So one, two, three, four, five, six.

And I might have to put one more up here.

Seven.

We've got seven parts.

One is a part.

Two is a part.

One is a part.

Two is a part.

One is a part.

Two is a part.

And one is the last part.

So I've managed to make 10 into one as a part, two as a part, one as a part, two as a part, one as a part, two as a part, one as a part.

I've made a repeating pattern using the different counters and arranging their parts like this.

Now it's time for you to pause the video and complete your investigation into the different parts of 10.

Remember, come up with as many creative ways as you can.

When you're finished, press play.

So, what did you find out? This is tricky because I'd love to see all of your answers.

Maybe you might have to share them with us.