Lesson video

Hi friends, it's Miss Molnar here.

And today we are going to do some maths together.

And of course I brought along my trusty sidekick who loves maths learning.

It's Harold, the hedgehog, say hello to Harold everyone.

Alright, so Harold, we are going to look at today, Shape, we're going to be looking at describing and sorting some 3D shapes.

Now I'm not going to tell you yet what you're going to need for this lesson or that might ruin the first activity.

So we'll let you know what we need as we go along with the lesson.

All right, here we go.

All right, so, Harold and I have up on the screen, some different 3D shapes.

I wonder, have you seen any of these shapes before? Well, if you said, yes, you're right because 3D shapes are all around us.

So for example, I've got my water bottle here and it looks similar to one of the shapes on the screen, the cylinder, can you spot which one and point to the one that it looks similar to? Well done.

So this is where you're going to pause the video and you're going to have to go get some things that you'll need for this lesson.

We are going to go on a shape hunt everyone.

So I want you first to make sure you ask a parent or carer for help on this.

And then you are going to go around and see what shapes you can find similar to the ones on the screen, in your own home.

So, Miss Molnar has already found a shape that kind of looks like a cylinder with her water bottle.

So I'm going to go collect a few more things in my home as well, that are similar to the shapes on the screen.

So pause the video, get ready, go on your shape hunt and bring all of your items back with you.

Don't worry if you don't find one for all of them on the screen, just see what you can find.

All right and let's hunt, all right.

Well, we're back from our shape hunt and it was exhausting.

What items did you find in your house? Did you find any that were similar to the 3D shapes on the screen? Well, I found a few things.

Some of the things I found were, this orange, it kind of looks like the sphere on the screen.

Did you find anything of this shape as well? That's great, I also found this box of lasagna pasta stuff.

It looks similar to the cuboid that was up on the screen.

I bet you found lots of great things as well.

So we're going to take a closer look at where we might find or see these 3D objects in real life.

All right, so we're going to look at some of these shapes a little bit closer.

How can we describe this shape? Is it a flat shape? Is it curved? Does it have of any vertices? A vertice is a point or corner on a shape.

Does it have any? It does, doesn't it? It has one, we could say it has one vertex.

I say, you say vertex.

Does this shape remind you of anything? Something that you could find in real life that looks like this? Well, it kind of reminds me of a party hat, doesn't it, Harold? Also, it kind of reminds me of an ice cream cone.

Is that what you said? So we could describe this shape, this 3D shape is called a cone and we can describe it as having one curved surface that goes around the top of it.

And it's got one flat face on the bottom underneath.

And then, like we said, it's got one vertex or one corner or point at the top.

All right, let's try another one.

All right, so we've got this shape here now.

How might you describe this shape? Does it have any curved faces this time or curved surfaces? No, it doesn't have any curves this time, does it? Does it have some straight edges? So the edges are the lines that go straight across the shape.

It does have some straight edges, doesn't it? Does it have any vertices this time? Remember, vertices are the corners or the points.

It has several vertices, doesn't it? What does this shape remind us of now? What objects in real life can you think of, that their shape looks like.

Well, so this shape is called a cube and it reminds me of dice.

Is that what you said? Well, it also could remind me of a cardboard box and I'm sure there's lots of other things you found in your home as well.

So we could describe our cube as having straight edges, flat faces several of them and I can see if I'm going to count one, two, three, four, five, six, seven, eight, eight vertices.

It doesn't have any curve lines though.

All right, let's see what we've got next.

All right, now we've got this shape.

Now, to me this one looks pretty similar to acute.

How was it different than the last picture or the last shape? That's right.

It's much longer or much wider than the last shape.

It still has lots of flat faces, doesn't it? Does it have any curved lines or any curved faces.

No, no curves in this one either.

You're right, so this shape is called a cuboid.

What does it remind you of in real life? Well, remember when I had my lasagna box, it was a cuboid shape.

It also could remind me of a juice box.

What does it remind you of? Great.

So we can see that this shape definitely has some vertices as well, doesn't it? Right, and it's got lots of straight edges and flat faces.

Okay, now we're on to this shape.

What does this shape remind you of now? Remember, Miss Molnar said it reminded her of her water bottle.

How could we describe this shape? What kind of faces does it have or surfaces? Does it have curved? Does it have straight? Are there any vertices? Have a think.

So, we can see that this shape is a cylinder and it's got a curved surface going all the way around, just like with my water bottle.

Then we've got two flat faces on it, one at the top and one at the bottom.

And let me see, does it have any straight edges? No, there's no straight edges but it has some curved edges going around the top and the bottom.

What about vertices? Does it have any corners coming to a point? It does not, you're right.

Not every 3D shape has vertices.

They're all a little bit different and this one has no vertices.

All right, I wonder what this shape is going to remind us of.

Could you think of anything It looks like in real lives? Well, Harold's told me it reminds him of candle being the same shape.

I wonder what it reminded you of? That's great.

All right.

So what we're going to do now is I'm going to play a little bit of a game with you.

So I'm going to pick one of the shapes on the screen and I'm going to describe it to you or Harold's going to describe it to you.

I'm going to use the sentence then, this shape has, and I'm going to use some of the words below to describe it.

So let's go through our vocabulary together.

My turn, your turn, surface, flat, curved, vertices or vertex, edges.

All right, now that we've got those words, those that language ready to go.

Harold is going to describe one of the shapes on the screen.

Then he would like you to have a go at guessing which one we're describing.

You can pause the video if you want.

And we want you to point at the correct shape, all right.

So Harold is going to whisper to me what the shape has.

And we want you to guess which one we're talking about.

All right, Harold says, this shape has a curved surface and it has no vertices.

I wonder which of those three shapes, could it be? It has a curved surface and it has no vertices.

So if you need more time to guess you can pause the video but if you're ready, can you point to the correct shape? Well, if you pointed to our middle shape, the red one, you're so right.

That is a sphere and that is the shape that Harold was describing, way to go.

Alright, I'm going to pick another shape and I'm going to describe it.

And I want you to think about which one I'm describing on the screen.

Alright, let me see.

This shape has several vertices.

It doesn't have any curved edges or curved surfaces.

Which shape could I be describing? Have a think, point to the correct shape when you think you've got it.

If you pointed to the blue cube, you are so right.

Well done, that's exactly what I was describing.

All right, now we would like you to have a go at pausing the video and can you describe the last shape that we haven't spoken about on the screen? So the cone, can you have a go at using some of the language below and describe it? This shape has, alright, pause the video and have a go.

All right, so for your main task, this is where you're going to need some of those real life 3D shapes from around your home.

Remember to ask a parent or carer before you grab them and use them.

Now you can print out this resource sheet in the downloadable resources to help you sort but you could also make one, you could also use two hoops or just use some space on the floor and make two separate piles.

What we'd like you to do is to take your shapes and sort them between one pile that says, has at least one vertex.

So shapes that have at least one vertex are going to go in this side, then you're going to sort the other shapes that do not have any vertices in the other side.

So if I was going to have a go, I'm first going to start with my orange, okay? So does my orange have at least one vertex or no vertices? What do we think? That's right, it does not have any vertices.

So I'm going to put it in this side, all right? Then I could have another go and I could take my cuboid shape of my lasagna pasta.

Now, where is it going to go? Does it have at least one vertex or does it have no vertices? That's right, it has several vertexes.

So I'm going to put it on this side so you can pause the video now, you could even do it on the table or the floor if you need more room, have a go at that and then we'll come back together.

Well done everyone.

We hope you had a great time sorting all of those real life 3D shapes between shapes that have vertices and shapes who do not.

Well, I was just going to say goodbye but I don't know where Harold's gotten off to.

Oh, there he is.

Looks like he's been getting into that 3D shape there.

That sphere, he must've been hungry again.

Well, that is all we have time for, I'm afraid today but we would love to see some photos of your learning.

So if you'd like to, you could ask your parent or carer to share the photos on our social media at Oak.

So Harold and I can see all the amazing, sorting you've been doing today.

All right to everyone, until next time, see you later.