Lesson video

Hello, I'm Mrs. Cayley and I'm going to be helping you with your learning today.

We're going to be using the equality and inequality symbols when comparing a set of objects.

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

Here's the outcome of today's lesson.

So by the end of the lesson you'll be able to do this.

I can use equality and inequality symbols when comparing sets of objects.

Now don't worry if you don't know what this means yet.

You'll learn by the end of the lesson.

Let's have a look at our keywords for today's lesson.

Can you say them after me? Are you ready? My turn.

More than or greater than.

Your turn.

My turn.

Fewer than or less than.

Your turn.

My turn.

Same as or equal to.

Your turn.

Well done.

We'll be using those words in today's lesson.

You might have also noticed some symbols next to the words.

We'll be learning what those symbols mean.

Let's have a look at today's lesson outline.

So in today's lesson, we will be using the symbols that we've just seen in the key words.

These are called the equality and inequality symbols.

And we'll be learning what they mean.

After that, we will be comparing sets.

So let's start with the first part of the lesson.

Here are some children that we'll meet in today's lesson.

They're going to help us with our learning.

We've got Sam and Izzy.

Here's the first part of the lesson.

Here are some houses.

What do you notice about the houses? Sam said, "The houses have different amounts of windows." Did you notice that? What do you notice with these two houses? We've got house one and house two.

Look at the windows in particular.

That's right.

House one has fewer windows than house two.

House two has more windows than house one.

What do you notice with these houses? We've got house one and house two.

That's right.

House one has more windows than house two.

And house two has fewer windows than house one.

What do you notice this time with the two houses? That's right.

They have the same number of windows.

So we could say, house one has the same number of windows as house two.

What do you notice here? We've got some sets of cubes.

You might have some cubes like this that you can try it with.

What do you notice about the cubes? Izzy said, "The towers have different amounts of cubes." Sam said, "It's almost like the windows on the houses." What do you notice here? Have a look at the cubes and see what you notice.

That's right.

One is less than three.

So one cube is less than three cubes.

I've put a symbol in to help us.

This is the less than symbol.

It's one of the inequality symbols.

This symbol means less than.

So instead of saying the stem sentence, one is less than three, we could put the symbol in.

What do you notice here? We've got three cubes and one cube.

We could say, three is greater than one.

I'm going to put the inequality symbol in.

There we are.

This symbol means greater than.

So three is greater than one.

And instead of writing the words, greater than, we could put the symbol in between the two numbers.

What do you notice here? That's right.

Both of these towers have the same amount of cubes.

Izzy said, "They are the same as each other." Two is the same as two.

I'm going to put the symbol in.

Have you seen this symbol before? This is the equal to symbol.

So this symbol means equal to.

So we could say, two is equal to two.

Or we could put the symbol in between the two numbers.

Two is equal to two.

So let's recap the symbols that we've learnt.

You can try to make them with your hands or your fingers.

So this symbol represents, is less than.

And there's a picture of the symbol.

Can you see that when you put the cubes in between the two ends of the lines, it makes the right shape for the symbol.

This symbol represents, is equal to.

You can make this with your hands or your fingers as well.

And when you put the cubes in between, you can see why the symbol looks like that.

This symbol means, greater than.

Can you try to make this symbol with your hands? And again, when you put the cubes in between the lines, you can see why it's that way around.

What do you notice here? What can you say about these towers of cubes? That's right.

One is less than three.

We can put the symbol in as well.

This also means, one is less than three.

What do you notice now? That's right.

Three is greater than one.

And again, we can put the symbol in between three and one.

Do you notice that when the two numbers swap round, the symbol also changes? So we can say, if one is less than three, then three is greater than one.

They're the opposite of each other, aren't they? Can you compare the towers of cubes? I've made lots of towers of cubes here.

And if you've got some cubes, you could try this yourself.

Sam noticed that some have more cubes than others.

I've tried to put them in order.

So you're having one more cube each time.

Sam has also noticed that some have fewer cubes than others.

Sam has noticed that three cubes is fewer than five cubes.

So three is less than five.

And she's put the symbol around the cubes.

That's the less than symbol.

So three is less than five.

We can also say that five cubes is more than three cubes.

So this time she's swapped her cubes round and she's put the symbol in.

Five is greater than three.

Five is more than three.

Now Sam has got two towers that are the same amount of cubes.

They've both got five cubes.

And she said, "Five cubes is the same as five cubes." So I wonder what symbol she can put around the cubes.

That's right.

She can put the equal to symbol.

So five cubes is equal to five cubes.

And there we've written it with the symbol.

Let's check your understanding.

Which set has more cubes? You can use your hands to make the symbol.

And I've got a stem sentence for you here as well.

Mm cubes is more than mm cube.

I wonder what numbers can go on the line.

Pause the video and have a think.

That's right.

Five cubes is more than one cube.

Which way round is the symbol going to go? Can you put your hands in the right place, to make the symbol? That's right.

There it is.

Five is more than one.

Or five is greater than one.

Which set has fewer cubes here? Here's a stem sentence to help you.

Mm cubes is fewer than mm cubes.

Can you think which numbers are going to go on the lines there? Pause the video and have a think.

That's right.

Two cubes is fewer than seven cubes.

I wonder which way around the symbol's going to go.

Can you use your hands to help? Is it going to be equal to? Is it going to be greater than? Or is it going to be less than? That's right.

It's less than.

Two is less than seven.

Which set has fewer cubes here? Pause the video and have a think about what the stem sentence might be.

That's right.

These two are the same.

So we're going to use the words, the same as, in this stem sentence.

So three cubes is the same as three cubes.

Is that what you thought? What do you think the symbol's going to look like? Can you put your hands to show? That's right.

It's equal to.

So both of your hands are level.

So three is equal to three.

Here's another check.

Can you fill in the missing symbols? So I've made some towers of cubes.

Here I've got six cubes and five cubes.

Now I've got four cubes and seven cubes.

And finally, I've got six cubes and six cubes.

Now in between each pair of cubes, can you try to work out which symbol can go in the circles? So is it going to be equal to? Or is it going to be greater than or less than? Sam said, "You can use your finger to draw the symbol around the cubes." So pause the video and try this one.

What do you think about this one? So let's have a look at the first part.

We had six cubes and five cubes.

Six is greater than five.

Well done.

The second one, is four cubes and seven cubes.

That's right.

Four is less than seven.

And the last one.

Six cubes and six cubes.

They're the same, aren't they? So six is equal to six.

Well done.

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

Can you draw cubes to show the amounts? So the first one is, one is less than four.

The second one is, five is equal to five.

And the third one is, eight is greater than three.

Can you draw cubes between the symbols, to represent all of these equalities or inequalities? You can use real cubes to help you.

Here's the second part of the task.

Can you fill in the missing numbers and symbols? So I've given you some of the numbers or some of my towers of cubes.

But can you count the other towers of cubes and fill in the correct numbers where the squares are? And then think about which symbol is going to go in the circles in between the numbers.

So is it going to be an inequality symbol? Less than or greater than.

Or is it going to be the equality symbol? Equal to.

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

How did you get on with your task? I asked you to draw some cubes in between the symbols, to represent the equalities and inequalities.

So the first one was, one is less than four.

So I've drawn one cube and four cubes.

The second one was, five is equal to five.

So I've drawn five cubes and another five cubes, in between the equal sign.

And the final one was, eight is more than three.

So I've drawn eight cubes and three cubes, in between the greater than symbol.

How did you get on with that? You might have represented your cubes in a different way.

So here I've taken away the symbols and I've shown the sets of cubes that are lined up nicely.

So you can see one is more and which one is fewer? How did you get on with the second part of your task? So I asked you to fill in the missing numbers and symbols.

So the first picture is showing, three is equal to three.

The second picture is showing, two is less than five.

And the last picture is showing, eight is less than nine.

Do you agree? Let's move on to the second part of our lesson, where we will be comparing sets.

Izzy and Sam are comparing the sets of fruit here.

So we've got some oranges and some lemons.

Izzy said, "Which set has more?" And Sam said, "How could we check?" Is there a good way of comparing the sets of fruit? That's right.

We could line them up.

Izzy and Sam have lined them up.

Here are the oranges.

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

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

And here are the lemons lined up.

Let's count the lemons.

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

So there are six oranges and there are seven lemons.

Which one is more? There are more lemons than oranges.

There are fewer oranges than lemons.

Seven is greater than six.

And six is less than seven.

Here we have written the sentences with the symbols in.

So seven is greater than six.

And six is less than seven.

Izzy and Sam are comparing the fruit here.

We've got some pineapples and some apples.

Izzy said, "I think there are more pineapples than apples because they are bigger." Sam said, "I think there are fewer pineapples than apples." Who do you agree with? And how could we check? That's right.

We could line the fruit up.

So here are the pineapples.

And here are the apples lined up underneath.

Now can you see which set has got more? Izzy said, "Now they are lined up, I can see there are more apples than pineapples." Sam said, "There are fewer pineapples than apples, even though they are bigger in size." Izzy said, "Six is greater than five." Sam said, "Five is less than six." We've got some more apples here.

Are there enough apples to give the friends one each? I wonder how many apples there are.

Shall we count them? Can you point, while we're counting One, two, three, four, five, six, seven, eight apples.

And here are the friends.

I wonder how many friends we've got.

Should we count them? One, two, three, four, five, six, seven friends.

So we had eight apples and seven friends.

Do you think there will be enough apples to give the friends one each? Let's try.

Let's give each friend an apple.

Shall we count them as we give them to them? One, two, three, four, five, six, seven apples.

Were there enough apples to give the friends one each? Yes, there are eight apples and there are seven children.

Eight is greater than seven.

And we've written it there with the symbol.

Eight is greater than seven.

So there were enough apples, there was one left over.

Izzy wants to know if she has enough hats to give one to each of her toys.

I wonder how many hats there are.

Can you count them with me? One, two, three, four, five, six hats.

And I wonder how many toys there are.

Can you count the toys with me? Might want to point, to help you.

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

There are eight toys.

So I wonder if Izzy has enough hats to give one to each of her toys.

Let's try to give them one hat each.

Can you count them as we do it? One hat, two hats, three hats, four hats, five hats, six hats.

Were there enough hats for all of the toys? No, there are six hats and there are eight toys.

Six is less than eight.

And we've written it there with the symbol.

Six is less than eight.

Let's check your understanding.

Are there enough plates for the cakes? I wonder if you can count how many cakes there are.

And count how many plates there are.

And work out if there's enough plates for all of those cakes.

So pause the video and think about this one.

So, do you think there are enough plates for the cakes? Let's try to put one cake on each plate.

Can you count them as we do it? One, two, three, four, five cakes.

Are there enough plates? No, there are six cakes and there are five plates.

So it's not enough.

Because five is less than six.

And there we've written it with the symbol.

Five is less than six.

Let's check your understanding.

Can you fill in the missing symbols and numbers? So we've got some sets of cubes here.

How many cubes are in each set? That number's going to go in the rectangles.

And in the circle in the middle, we're going to put the correct symbol.

Is it going to be equal to? Is it going to be greater than? Or is it going to be less than? So pause the video and have a think.

How did you get on with this one? So we've got, six cubes in the first set and five cubes in the second set.

Is six equal to five? Or is six greater than five? Or is six less than five? That's right.

Six is greater than five.

Because there are more cubes in the first picture than in the second picture.

Six is greater than five.

Let's check your understanding again.

Can you fill in the missing symbols and numbers here? So think about how many cubes are in each group and then think about the symbol that's going to go in between.

Equal to, greater than or less than? So pause the video and think about this one.

So this time we had five cubes and six cubes.

And five is less than six.

So this is the symbol that's going to go between them.

Five is less than six.

Let's check your understanding again.

Can you fill in the missing symbols and numbers here? Pause the video and think about this one.

So this time we had six blue cubes and six yellow cubes.

So which symbol is going to go in between the two numbers? That's right.

Six is equal to six.

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

We've got some some sets of objects here on cards.

Can you count the objects and put the correct symbol between two of the cards? I've left a little box there, for you to write down how many objects there are in each set.

And you could cut the cards up and try to put the correct symbol between two of the cards.

So it could be the greater than, the less than or the equal to symbol.

Here's the second part of your task.

I've given you the three symbols and can you match the symbols with their meaning? So which one means less than? Which one means greater than? And which one means equal to? And you could use your hands and some cubes, to help you.

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

How did you get on with your task? We asked you to count the objects in each set and to use the symbols to compare two of the sets of objects.

So this is what I tried.

I had three cubes is less than eight lemons.

Six apples is greater than the four straws.

And five cubes is equal to five balloons.

Now there are different ways that you might have done this task.

So tell someone how you did your ones.

How did you get on on the second part of the task? So we asked you to match the symbols with the correct meaning.

So the first symbol, is like this.

It is the, equal to, symbol.

The next symbol is like this.

And it is the, less than, symbol.

And the last one is like this.

And it is the, greater than, symbol.

How did you get on with that one? We've got to the end of our lesson today, on using equality and inequality symbols, when comparing sets of objects.

This is what we've learned today.

The equality and the inequality symbols, are used when comparing sets of objects.

This symbol represents, less than.

This symbol represents, greater than.

And this symbol represents, equal to.

So try to remember those symbols and don't forget to use your hands to help.

Bye everyone.