Lesson video

Hello, everyone.

I'm Mrs. Cayley, and I'm going to be your teacher for today's lesson.

So in today's lesson, we're going to be looking at the number 10, and we'll explain that one 10 is equivalent or equal to 10 ones.

So let's have a look at today's lesson outcome.

Here's the outcome of today's lesson.

I can explain that one 10 is equivalent or equal to 10 ones.

Here are the keywords for today's lesson.

Can you repeat them after me? My turn, ten.

Your turn.

My turn, ones.

Your turn.

My turn, equal to.

Your turn.

Well done.

You might have seen these words before.

Look out for them in today's lesson.

Here's today's lesson outline.

First of all, we'll look at 10 ones are equivalent to one 10 and then we'll look at groups of 10.

So let's start with the learning.

Here are some children that are going to help us today.

We've got Sofia and Jun.

Jun has some cubes.

Can you see the pile of cubes that Jun's got? How could he count them? They look a bit tricky to count at the moment, don't they? Can you think of a way that would make it easier for him to count them? Jun's had an idea.

He said, "I could put them in a line." Perhaps you can count them as he puts them in a line.

One cube, two cubes, three cubes, four cubes, five cubes, six cubes, seven cubes, eight cubes, nine cubes, ten cubes.

Jun's got 10 cubes.

Let's put the numbers underneath.

Can you say the numbers as they appear? 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 cubes.

Sofia has some cubes as well.

Can you see Sofia's cubes? They're already in a line, aren't they? How could she count them? Sofia said, "I could separate them to check." So she's going to move them all apart to separate them.

Shall we count them as she separates them? One cube, two cubes, three cubes, four cubes, five cubes, six cubes, seven cubes, eight cubes, nine cubes, ten cubes.

Let's put the numbers underneath to check.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10 cubes.

They both had 10 cubes, didn't they? Jun and Sofia have some cubes.

What do you notice? What's the same and what's different? Jun said, "I have 10 cubes." You might want to count them to check.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10 cubes.

Sofia said, "I have one group of 10." So she's got 10 cubes all put together in one group.

Jun said, "Would you swap your cubes for mine?" Do you think that would be fair? Sofia said, "Yes, we both have the same amount of cubes." So even though they look a bit different, they've both got the same amount.

They've both got 10 cubes.

Jun had 10 ones, and Sofia had one group of 10.

Is this a group of 10, and how do you know? I wonder if you can count and check if there are 10 cubes or not.

Yes, it is a group of 10.

Sofia said, "There are 10 cubes." I can see we've got five blue cubes and five pink cubes.

That makes 10.

We've got a stem sentence here.

This is one group of 10 because there are mm cubes.

Can you say the stem sentence with me? This is one group of 10 because there are 10 cubes.

10 ones are equal to one 10.

Here are some more cubes.

Is this a group of 10, and how do you know? Yes, it is a group of 10.

Jun said, "They are in a different arrangement." That means they've been put in a different place, but there are still 10 cubes.

Sofia said, "There are still 10 cubes." I can see we've got five pink cubes and five blue cubes.

Let's say the stem sentence together.

This is one group of 10 because there are 10 cubes.

10 ones are equal to one 10.

Here are some more cubes.

Is this a group of 10, and how do you know? These cubes look a bit different, don't they? They're different sizes, aren't they? Some are big and some are small, but is there still a group of 10? You could count them to check.

Yes, there are still 10 cubes.

Sofia said, "There are still 10 cubes.

They are all cubes but different sizes.

They are still a group of 10 cubes." Let's say the stem sentence together.

This is one group of 10 because there are 10 cubes.

10 ones are equal to one 10.

Is this a group of 10, and how do you know? You might want to count them to check.

No, this was not a group of 10.

There are not 10 cubes.

Let's try to count them and see how many there are.

You can point as we count.

1, 2, 3, 4, 5, 6, 7, 8, 9 cubes.

I can see there are three groups of three, aren't there? Let's say the stem sentence together.

This is not one group of 10 because there are not 10 cubes.

There are nine cubes.

Here are some more cubes.

Is this a group of 10, and how do you know? Yes, this is a group of 10.

There are still 10 cubes.

They're in a different arrangement, aren't they? Let's say the stem sentence together.

This is one group of 10 because there are 10 cubes.

10 ones are equal to one 10.

Let's check your understanding.

Which of these are showing a group of 10? Pause the video and have a look at the cubes and decide which ones are showing a group of 10.

Which ones do you think are showing a group of 10? So this first one has got 10 cubes.

I can see they're in pairs.

So we've got 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Let's look at the one at the bottom.

We've got five pink cubes and five blue cubes.

Yes, that's a group of 10.

Let's have a look at the one that looks like a staircase.

Is that a group of 10? Yes, I can see we've got 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Let's look at the tall tower.

Has that got 10 cubes? Yes, there are 10 cubes there.

They're all in a row.

Let's have a look at the blue and the pink cubes.

I can see we've got five blue cubes, but we've only got four pink cubes.

So that is not a group of 10.

There's only nine cubes there.

Let's have a look at the blue and green cubes.

Is that a group of 10? No, I can see we've got five green cubes but only four blue cubes.

We'd need five of each, wouldn't we, to make 10.

Can you make a group of 10 cubes? If you've got some cubes, you could try this or you could draw it on a piece of paper, and you can make a group of 10 cubes in different arrangements.

Let's check your understanding again.

Jun and Sofia have some cubes.

Do they have the same value, and how do you know? So have they both got the same amount of cubes? Pause the video and think about this one.

What did you think about this one? Yes, they do both have the same value.

They've both got the same amount.

Jun said, "I have 10 cubes." Sofia said, "I have 10 cubes too.

They just look different." So there's different ways that we can put 10 cubes together.

Any object can be grouped into tens.

So here we've got 10 pencils.

We've got 10 ones.

They can be put together as one group of 10.

We've put them in a pack of 10.

Sofia said, "There are 10 pencils." Jun said, "There is one group of 10 pencils." 10 ones are equal to one 10.

What do you notice here? Sofia and Jun have got some straws.

Can you count the straws? 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 straws.

We can put them in a bundle of 10.

Sofia said, "There are 10 straws." Jun said, "There is one group of 10 straws." 10 ones are equal to one 10.

What do you notice here? Sofia and Jun have got an egg box.

They're going to put some eggs in their egg box.

I wonder how many eggs they've got.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10 eggs.

Sofia said, "There are 10 eggs." Jun said, "There is one group of 10 eggs." 10 ones are equal to one 10.

Let's check your understanding.

Jun and Sofia have some objects.

Do they have the same value, and how do you know? So Jun has got some straws and Sofia has got some eggs.

Have they got the same amount? Pause the video while you think about this one.

What did you think about this one? Yes, they have the same value.

Jun said, "I have 10 straws." Sofia said, "I have 10 eggs." They've both got the same amount.

Jun said, "We have different items, but they are still a group of 10." Here's a task for you to have a go at.

Can you complete the pictures to make groups of 10? So can you see we've started to put some objects here, but we haven't finished them yet.

We haven't made a group of 10 yet.

So can you complete the pictures, draw some more objects to make each one a group of 10, and think about how can you check? Here's the second part of your task.

Can you find and draw groups of 10 objects? So have a look around you and see if you can find 10 of something and make it into a group of 10 and draw them in the boxes and think about how can you check.

So pause the video and have a go at your tasks.

How did you get on with your task? Did you complete the pictures to make the groups of 10? So first of all, we had five eggs, and you need to draw another five to make 10 eggs.

Then we had three straws, and you need to draw seven more to make a group of 10.

Then we had four pencils, and you needed to draw six more to make a group of 10.

Then we had five cubes, and you needed to draw five more to make a group of 10.

Then we had some counters.

There were six counters to begin with.

You had to draw another four to make 10 counters, and finally, we had some cubes.

There were seven cubes, and you needed to add three more to make a group of 10.

How did you get on with that one? How did you check that you had a group of 10 each time? So Jun said, "I looked for two groups of five." So for the counters or for the eggs, you might see that you've got one group of five and then another group of five underneath.

Sofia said, "I looked for bonds that made 10." So with the straws, it was three straws and seven straws.

That makes 10 straws, and with the pencils, it was four pencils and six pencils.

That makes 10 pencils.

Is that what you did? How did you get on with the second part of your task? Did you find and draw groups of 10 objects? You might have tried drawing some sticks or cubes or shapes or counters, and remember, you can do it in different arrangements, and how did you check that they were groups of 10? Did you try to look for two groups of five or think about your number bonds that make 10? Let's move on to the second part of the lesson, groups of 10.

Jun and Sofia have some number shapes and they are wondering if they are worth the same.

So Jun has got some ones, and Sofia has got a 10.

Do you think they're worth the same? Jun said, "I have 10 ones." Sofia said, "I have one 10." Do you think Jun's 10 ones are worth the same as Sofia's one 10? Jun said, "10 ones is equal to one 10." So Sofia said, "They have the same value.

I cannot break mine apart." So how could we check? Jun said, "I could move mine into the same pattern as yours." Can you imagine Jun's cubes moving into the same pattern as Sofia's? And then it would look the same, wouldn't it? Then we would see that it's the same amount.

Jun and Sofia have some coins, and they are wondering what they are worth.

Can you see Jun's coins there? Jun said, "I have 10 pence." He's got 10 one penny coins.

Sofia said, "I have 10 pence too." She's got one 10 pence coin.

10 ones is equal to one 10, so they're equivalent.

They have the same value.

Ten 1 p coins have the same value as a 10 p coin.

So can you see the ten 1 p coins there? Let's say the stem sentence together.

Here are 10 one penny coins.

The total value is 10 p.

Then can you see the 10 pence coin? Let's say the stem sentence together.

This is a 10 pence coin.

It has a value of 10 p.

Sofia said, "They are both equal.

They both have a value of 10 p." Each 10 pence coin is worth 10 pence, or 10 p.

Let's check your understanding.

Which group of pennies make 10 p? Can you see the three groups here? Pause the video while you think about this one.

So which group of pennies made 10 p? It's the last group there.

I can see we've got five pennies at the top and five pennies at the bottom.

Let's say the stem sentence together.

This is one group of 10 because there are 10 pennies.

Well done.

Jun and Sofia have found some groups of 10 and are wondering how they can check.

You could have a look around you as well and see if you can find some groups of 10 and think about how you could check.

Jun said, "We can't break them all up to check." So some of these are very difficult to break apart to see if they are 10 ones.

So sometimes the cubes are hard to break apart, and sometimes the number shapes are hard to move apart, and your fingers are hard to move apart, and the 10 pence coin, we can't break that up, can we? But Sofia said, "We can see they all have 10." Let's check your understanding.

Which group of cubes make 10? So look at the three groups of orange cubes.

Which group makes 10? Pause the video and think about this one.

It was the middle one.

I can see a group of five and another five.

That makes 10.

Let's say the stem sentence together.

This is one group of 10 because there are 10 cubes.

Here's a task for you to have a go at.

Can you sort the cards into a group of 10 or not 10? So here, we've got some objects.

Some of them are showing a group of 10 and some of them are not 10.

So see if you can cut them out or sort them into groups of 10 or not 10, and then have a go at the stem sentence while you're doing it.

This is one group of 10 because there are 10 mm, so cubes or coins or fingers, and then this is not one group of 10 because there are not 10 mm.

You could check this with real objects, and you could add some of your own as well.

Here's the second part of your task.

Can you match the group of 10 to their 10 ones? So here we've got a 10 pence coin and 10 cubes, and can you match them to the correct group of 10? So pause the video and have a go at your tasks.

How did you get on with your tasks? Did you sort the cards into 10 or not 10? So let's have a look at each one in turn.

First of all, we had eight pennies.

That is not 10.

Let's say the stem sentence, the bottom one.

This is not one group of 10 because there are not 10 pennies.

Then we had 10 fingers, so let's say the top stem sentence.

This is one group of 10 because there are 10 fingers.

Let's have a look at the coin.

That's a 10 pence coin, so we'll say the top stem sentence.

This is one group of 10 because there are 10 pence.

Then we've got 10 cubes in a group of 10, so let's say the top stem sentence.

This is one group of 10 because there are 10 cubes.

Then we've got 10 ones, the orange cubes, haven't we? This is one group of 10 because there are 10 ones.

Then we've got, I think there are only nine cubes there, so let's say the bottom stem sentence.

This is not one group of 10 because there are not 10 cubes.

Then we've got 10 ones with the blue cubes, haven't we? Let's say the top stem sentence.

This is one group of 10 because there are 10 ones.

And finally, we've got nine fingers showing, so let's say the bottom stem sentence.

This is not one group of 10 because there are not 10 fingers.

How did you get on with that one? Did you check with real objects, and did you find any more of your own? How did you get on with the second part of your task? Did you match the group of 10 to their 10 ones? So we've got a 10 pence coin, and I've matched it up to 10 one penny coins.

Then we've got one 10 with cubes, and I've matched it up to 10 ones.

Is that what you thought? We've got to the end of our lesson.

Today we were explaining that one 10 is equivalent to 10 ones, and this is what we found out.

10 ones are equal to one 10.

One 10 is equal to 10 ones.

10 pennies are equal to one 10 pence.

Well done, everyone.

See you next time.