Lesson video

Hello everybody.

My name is Mrs. Junson.

I'm really excited to be here today to help you with some of your maths learning.

I hope that you are ready to work hard and have lots of fun.

Let's have a look at what we're going to be learning about today.

Today's lesson is called explore, recognise and compare three different 3D shapes and it comes from the unit recognise, compose, decompose, and manipulate 2D and 3D shapes.

By the end of this lesson, you are going to be able to recognise, name and compare three different 3D shapes.

Don't worry if you don't know what a 3D shape is at the moment, I'm going to help you and we're going to work hard together.

There are four key words that we are going to practise which will help us with our learning today.

I will say each word first and then you will have a turn after.

Ready? My turn.

Similar.

Your turn.

My turn, cone.

Your turn.

My turn, sphere.

Your turn.

My turn cylinder.

Your turn.

Well done.

Some of those words are quite tricky so I think we should do that one more time.

Ready? My turn.

Similar.

Your turn.

My turn, cone.

Your turn.

My turn, sphere.

Your turn.

My turn, cylinder.

Your turn.

Good job, everybody.

Look out for those keywords in this lesson because they are really going to help you with our learning today.

There are going to be two parts to this lesson.

In the first part we are going to be matching objects and shapes together and then later on we're going to be comparing shapes.

Let's start by looking at matching objects and shapes.

There are two friends who are going to help you in this lesson.

Look out for Sophia and Jun today because they will be able to help you with your learning too.

Sophia has been on a little walk around her house and she's collected some objects.

Have a look at them carefully.

What do you notice about them? Let's have a think about that together.

I notice straight away I can see some things on here that I really like.

My favourite thing to have on toast, peanut butter and I notice there is a chocolate on there too, so some really tasty things.

Sophia is asking us to look carefully at the shapes that you can see.

So let's try not to think about about which things are tasty anymore.

Let's think about the shapes we can see.

I can see some pointy shapes.

I can see some wide shapes.

I wonder what you can see.

Can you see any shapes that are similar? Similar means alike, so not exactly the same, but they are quite like each other.

They are similar.

I wonder if you've spotted any similar shapes.

Sophia has.

Sophia has found these two objects and she says are I think these two are similar.

I wonder why Sophia might have chosen these two as similar shapes.

Let's see what she says.

Sophia says they are both round like a ball and if I pushed them they would both roll.

That is why they are similar shapes.

Did you think of any other reasons? Now Sophia has chosen two more things that she thinks are similar.

I wonder why she's chosen these two as similar shapes.

Let's see what she says this time.

Sophia says they can both stand up because they have a flat face and she also says they are both tall and thin.

That is why she chose these two objects as similar shapes.

Let's do a check and see if you can find some similar shapes.

Which object is a similar shape to this one? Do you think it's A or B or C? It is A, they are a similar shape.

Well done if you said A.

Let's have a look at another one.

Oh, it's my favourite peanut butter.

Look carefully at the shape.

Which object is a similar shape? Is it A, B or C? C is a similar shape this time.

Can you do one more check? Look carefully at this photo.

Which object is a similar shape? Is it A, is it B or is it C? This time the similar shape is C.

Well done.

All the shapes that we are going to be learning about today are called 3D shapes.

3D stands for three dimensional.

That means that there are three different ways that you can measure a 3D shape.

Let's have a look at those three different ways.

You could measure the height, so that means how tall it is.

You could measure the width, how wide it is and the third thing you can measure is the depth.

That's what makes it a 3D shape because there are three dimensions, three different ways that you could measure it.

Sophia has a nice helpful way for you to think about 3D shapes too.

She says if I hold a 3D shape between my hands I can feel it because it is not flat and we can see in the picture somebody is holding a 3D shape in between their hands.

Perhaps later on you could get a 3D shape and put it in between your hands and see what it feels like.

You can describe 3D shapes and what they look like using words that you probably use all the time.

Words like tall, thin, short, squashed, wide or pointy.

Let's check that you can find objects that match those words.

Have a look around you.

What objects can you see that might match some of those words? Off you go.

I bet you have found lots of things to match those words.

I was looking around my room and I noticed that I could see my glass of water which was tall and thin.

I wonder what things you found.

You've just talked about describe what a 3D shape looks like.

You can also describe what a 3D shape can do.

Again, using words that you probably use all the time.

So this time words like stand, roll, stack or slide.

Let's check that you can find some objects that match those words.

Have a look around you.

What can you see that might stand or roll or stack or slide? Have a good look.

Off you go.

Well done for looking really carefully around you, I was looking around in my room and I noticed that I've got lots of boxes that stack on top of each other where I can put all my things away.

You have just practised using lots of words that you already know to describe 3D shapes.

You can also use some mathematical vocabulary to talk about 3D shapes too.

So you are going to learn some new words so that you will be able to describe these 3D shapes.

Let's learn some of those new words together.

The first word is sphere.

Do you remember that from our keywords? We've already practised saying that one, haven't we? Sphere.

Look at all these spheres.

What do you notice about them? Let's have a think together.

What can we see that is the same about all of these spheres? A sphere is shaped like a ball, A sphere will always roll when you push it.

You are going to try to remember those two important facts about a sphere and then you are going to see if you can spot some spheres, so let's listen to them one more time.

A sphere is shaped like a ball.

A sphere will always roll when you push it.

Are you ready to find some spheres? Let's have a look.

Can you find four spheres? Look carefully at all of these pictures.

If you would like more time, you can pause the video while you are looking.

Okay, let's find these four spheres.

Here they are.

One, two, three, four.

Well done if you spotted those.

Good job.

Now that you know sphere, let's have a look at another 3D shape name.

The next one is cone.

Look at all of the cones.

What do you notice about them? You might recognise some that you've seen before.

Have you ever been to a party and worn one of these party hats? They are a cone shape.

Perhaps on a hot day you might have eaten an ice cream out of an ice cream cone.

The ice cream cone is a cone shape too.

All cones have three special things that I would like you to remember about them.

A cone has one point called a vertex.

Can you see the pointy part on the cone? That is the vertex and all cones have one.

A cone can stand if it is on its flat face.

A cone can roll if it is on its curved surface.

Let's see if you can use those three special things to find some cones.

Are you ready? Let's have a look at them.

Can you find four cones? Again, you can pause the video if you would like a little bit more time to find them.

Let's have a look where those four cones are.

There is one, two, three, four.

There are the four cones.

And now that we've learnt sphere and cone, we've got one more 3D shape name to learn.

This one is cylinder.

Have a look at all the cylinders.

What do you notice about the cylinders? Let's have a think together and then I'm going to show you the special things about cylinders.

Let's see if you've spotted any of the special things about cylinders.

A cylinder is a bit like a round tube.

A cylinder has two flat circle faces on it.

A cylinder will stand if it is on one of its flat faces.

A cylinder will roll if it is on its curved surface.

Let's think carefully about all four of those special things about cylinders before you have a go at spotting some.

It says a cylinder is a bit like a round tube.

You could think about other cylinder shapes you might know.

You could think about the middle of a toilet roll that is a cylinder because that is a bit like a round tube.

It also says a cylinder has two flat circle faces on it.

If you look at the shapes in the photo you can see circle shapes.

It also says that a cylinder will stand if it's on its flat face and a cylinder will roll if it is on its curved surface.

So you can think about if a shape could stand and roll then perhaps it is a cylinder.

I think you are ready to see if you can find those cylinders.

Let's have a look.

Can you find four cylinders? Pause the video if you need a little bit longer.

Off you go.

Let's have a look at where those cylinders are.

We have one, two, three, four.

There are our four cylinders.

Now let's check if you can remember all three of these 3D shaped names.

There is one picture of each shape.

Do you think you can remember them? I do have a clue for you.

Here are the names of the 3D shapes but they are not in the right order.

Do you think you can remember which 3D shape goes with each name? Let's have a look.

The first one is a cylinder.

The one in the middle is a sphere and the last picture is a cone.

Well done if you match those correctly.

Now you are going to practise finding 3D shapes by playing a card game.

You are going to lay out all all the cards in front of you and then you have to pick one card up and look at it.

Then as quickly as you can, you have to find the other three cards that match the card that you are holding and see if you can put them into sets of four.

If you finished matching all the cards, then what I would like you to do is look around and see if you can see anything around you that is the same shape as what you have on your cards.

Are you ready to play the game? Off you go.

Well done everybody.

That game was lots of fun wasn't it? This is how you could have matched your cards together.

Maybe you picked up the grey cone as your first card and then really quickly you had to find the other three cards to match that grey cone which were the two pictures of the party hats and the card that says the word cone.

Well done If you match them into sets of four like this.

Did anybody look around and see any objects they could find that would match the shapes that were on their cards? Did you look around really carefully? What shape objects did you see? Sophia could see a football and she said that is a sphere shape and Jun looked around really carefully as well.

He said he could see a pencil pot and that is a cylinder shape.

Well done if you spotted things around you and you could say which 3D shape they were to.

Now we're going to have a look at the second part of our lesson where you are going to be comparing shapes.

Have a look carefully at all the shapes that you can see in this picture.

Jun is wondering how he might describe these shapes and what shapes they are.

I wonder if you can remember what shapes these are.

You are right.

They are all cylinders.

Well done.

Do you think that all these cylinders look the same? No, I don't either.

Well done.

Jun has chosen two cylinders to look at.

He is going to think carefully about his two cylinders, how are they similar and how are they different.

And Jun can notice that one cylinder is taller and thinner.

One cylinder is shorter and wider.

But they are similar because they are both standing on a flat circle face.

Jun has chosen two cylinders and he has been able to talk about how they are similar and how they are different.

Let's check if you can do this.

This time, Jun has only chosen one cylinder.

He says, my cylinder looks short and squashed.

Can you work out which cylinder is his? Do you think it's A or B or C? Jun's cylinder is B.

Well done if you spotted it.

Now let's have a look at these shapes.

Sophia is wondering how she might describe these shapes and what shapes they are.

I think you can remember what shapes these are.

These are all cones.

Well done if you've remembered that.

Do you think that all the cones look the same? Let's have a look.

Sophia has chosen two cones to have a look at.

How are they similar and how are they different? Sophia's going to compare her cones.

One cone looks squashed, one cone is taller.

They both have a vertex.

Sophia's, right, isn't she? She can find things that are the same and things that are different.

Let's see if you can guess which cone belongs to Sophia this time.

Sophia says, my cone is tall and thin.

Could it be A or B or C? Sophia's cone is C.

Well done if you said that.

You are going to go and do a little bit more practise with another card game, but this time the card game is a little bit different.

You need to choose one card from the grey set.

Then you need to choose three cards to put with it.

The first card is one that is the same.

The second card is one that is similar but not the same and the third card is one that is nothing like the shape on your grey card.

Once you've chosen the cards to put together, I would like you to tell a partner why you chose those cards to put together as a set.

You could ask an adult if they have any 3D shapes or objects that you could use.

Then you could play this game with real shapes and objects instead of cards.

Are you ready to go and play the game? Off you go.

Well done everybody.

That was another really fun game where you really had to think carefully about the shapes that you could see.

Let's have a look how Sophia played this game and you can have a think if you did something similar to Sophia.

First, Sophia picked one grey card and she chose the sphere.

Then she chose three cards to put with it.

First, she chose this card, the one with the marble on it and she says, "I chose this card because they both show the same shape." Next, she chose this card with the potato on it and she says, "I chose this card because the shapes are similar but one is wider." And finally the third card she chose was the one with the party hat on it.

And Sophia says, "I chose this card because the shapes are nothing like each other." This one has a vertex and the other one does not.

I wonder if you said similar sentences to Sophia or if you gave different reasons for the cards that you chose.

You thought really carefully about how you could describe the shapes that you could see.

Well done everybody.

Now that you are at the end of the lesson, you have learned that 3D shapes are shapes that are not flat and you know if you hold a 3D shape in between your hands, you can feel it.

You know that you can see 3D shapes all around you.

You have learnt the names of 3D shapes.

You can recognise cylinders, cones, and spheres.

You've learnt to say their names and you can say how they are similar or different to each other using words like taller, wider, smaller, thinner, and squashed.

You've done some really excellent work in this lesson today.

Well done everybody.

I hope I'll see you again for some more maths lessons soon.

Bye-Bye.