Lesson video

Hello, my name's Miss Robson.

In this lesson, we're going to be exploring the different parts that make up our number bonds to seven and eight.

To start with, we're going to look at some different ways to see parts of a whole, not just using cubes and beads.

Then we're going to investigate on number bonds to seven, then on number ones to eight, and then it will be your turn to explore a picture and finding all of the different number bonds that you can in that picture.

In this lesson, you will need eight things that you can use to represent the different parts of your number bonds, and it might also be helpful to have a part home model.

Pause the video now to collect anything that you need, and when you're ready, press play.

First, we're going to look at the picture below and think about how there are actually number bonds in that picture, that maybe we might not have considered before.

I love cubes and I love beads.

And normally I use these to help me partition my number bonds, but actually numbers are all around us, and number bonds are all around us too.

So having a look at the picture, can you see something that makes the children the same or different? There's lots of different parts to these children, isn't there? So I can see, for example, a couple of children are wearing hats.

I can see two children wearing hats, one wearing a red hat and one wearing a blue spotty hat.

They could be our first part, so, two is a part, altogether there are seven children, but two of them are wearing hats.

That means that one, two, three, four, five children are not wearing hats.

So, five is a part, two is a part, the whole is seven.

You can see my part whole model with the whole seven written in it.

There are seven children altogether, two are wearing a hat, and five are not.

So two and five makes seven.

Can you copy that sentence? My turn first, two and five, make seven.

What's something else that you can see that makes the children different? What about, perhaps, how long their hair is? Or the colours of their t-shirts? Or the colours of their trousers? Or even, I think one of the girls is wearing a skirt.

So, I might choose that as my next number bond.

There are seven children altogether, here is my seven, one child is wearing a skirt, so one part is one, and the other part is six, six and one makes seven, your turn? Fantastic full sentence.

So, one is a part, six is a part, the whole is seven.

Number bonds can be represented in lots of different ways.

We could also look at children who have stripey t-shirts, and children who do not have striped t-shirts, to split it into two groups.

So I can say two children wearing stripey t-shirts, which means five children are not wearing stripey t-shirts.

Can you count how many children are wearing spotty t-shirts? Two children are wearing spotty t-shirts, that means five children are not wearing spotty t-shirts.

That's the same number bond, isn't it? We could change it around to make it different.

Children not wearing spotty t-shirts is five.

So five and two make seven, just like two and five make seven.

How many children are wearing red t-shirts? In a full sentence, one child is wearing a red t-shirt.

So, one is a part, six is a part, the whole is seven.

I can look at this picture for ages and find so many different number bonds, children with curly hair, children with no curly hair, children with plaits, children without plaits, children with solid coloured t-shirts, and children with patterns t-shirts, children that have blonde hair, children that have brown hair, children that have black hair.

There are so many different parts that we can see in this picture.

If you would like to, you can pause the video now and explore a few more of the number bonds that you can see represented in the picture below.

So, next we move on to our number ones to eight.

In this picture, there are stars, and just like the picture before, there are things that are the same about the stars, and things that are different about the stars.

Can you name some of the things that you can see, make the stars different from one another? Some are blue and some are patterned, Some are yellow, some are big, some are small, fantastic.

So altogether, how many stars are there? Can you count them? Altogether, there are eight stars.

That's why you can see the number eight in the whole of the part whole model.

This time I'm going to use my beads to help me figure out the different parts, as well as the stars on the screen.

So, I need eight beats because that will be my home.

One, two, three, four, five, six, seven and eight, there we go.

Here is eight beads.

There is one yellow star and the rest are blue or blue and white.

One yellow star, seven blues stars, one and seven make eight.

Can you copy that sentence? My turn first, one and seven make eight.

Super.

How many stars are patterned? Two stars are patterned.

So how many stars do not have a pattern? Six stars do not have a pattern.

Two is a part.

Six is a part, eight is the whole.

Two and six make eight.

So again, I'm looking at my number bonds, but in a bit more of an abstract way, because I'm just looking at a picture of eight stars, but actually there are so many different parts to these eight stars, that we could make loads of number bonds to eight.

We could also break it up into three parts.

There is one yellow star, there are two spotty stars, and there are five plain blue stars.

Altogether on my almost string and the stars, there are still eight as the whole, but now I broken it up into five, two and one, three parts, but they still all work together to make eight.

They still all come together to make eight.

Now it's your turn to investigate the number bonds to eight.

We're still working with the total of eight, we're still working with the whole of eight, but you've got a different picture to look at and to find the different parts from.

So I can see some chequered squares, I can see squares with black outlines, squares with no outlines, squares with red outlines, and triangles too, there are squares and triangles, there's a green triangle, there're so many different parts, and I'm sure that you could start by just finding two parts of eight, so finding two groups, so red shapes and green shapes, but you could then move on to finding three parts.

You could continue the investigation and you could find green triangles, red triangles and red squares.

You could find three parts of eight too.

Let's find a few together, before it's time for you to go off and investigate the rest.

The part whole model is there to remind us that the whole is eight, and that we can have two parts, but if you wanted to have three parts or even four parts or five parts to eight, you could draw on some extra parts.

You don't just have to keep the two parts.

So, let's start with things that are green and things that are not.

How many of the shapes are green? Just one, one of the shapes is green.

How many of the shapes then are not green? Seven of the shapes are not green.

One, two, three, four, five, six, seven.

Fantastic, so I've got seven as a part, one as a part, the whole is eight, seven and one make eight, your time? Excellent.

I'm going to do one more with you.

Let's look at things that have a black outline, so someone's drawing a black line around the outside of the shapes.

Things to have a black outline, and things that do not have a black outline.

Can you count first, how many things have a black outline? There are full shapes with a black outline.

Here is full.

How many shapes then, do not have a black outline? One, two, three, four.

Four of the shapes do not have a blackout line.

Four is a part, four is apart, the whole is eight.

That's a double number.

They're the same number, twice.

Have a look.

So that means, half of the shapes have an outline, and half of the shapes do not have a black outline.

Now, it's your turn to pause the video and investigate the rest of the parts of eight that you can find in the picture of the triangles and the squares.

I can't wait to see how many different ways of making eight do you come up with.

Pause the video now, to complete your task.

When you're finished, press play.

So, how many different parts did you find? Let me show you just a few of my favourites.

The first part was that there is two groups of different shapes.

So there's a group over here with shapes, so that's three, and there's a group over here with shapes, that's five.

So three and five make eight.

I also thought that there are triangles and there are squares.

So I looked first at the squares, there are two squares, and then there are six triangles.

Two and six, make eight.

Then I thought, that I wanted to find three parts.

So I thought, there's this pattern here, there's this pattern here.

And then there's solid colours.

These ones are all solid colours.

So there are two with this chequered pattern, one with this little spotty pattern and five that are a solid colour.

So three and one and five, make eight.

Did you manage to find any parts of eight that had more than just two parts? Did you manage to investigate three parts? If not, you can pause the video now to have a quick look and see if you can find any ways that make eight, that you use as more than two parts.

Thank you for joining me today.

I really loved our investigation into the different parts of seven and eight.

Why not share your work with us? If you'd like to, ask your parent or carer to share your work on Twitter by tagging @OakNational and using the hashtag, #learnwithOak.

We'd love to see what you've been getting up to.

Don't forget to go and complete the quiz.

Thanks for joining me.

See you next time.