Lesson video

Hello, welcome to today's maths lesson.

My name is Miss Jones and we're going to be doing some maths together today.

Hope you're feeling well and excited to get going.

Before we start, let me tell you a little secret.

Maths is actually my favourite subject.

Do you like maths? Should I tell you why I like it so much? Because maths is all about becoming a problem solver and I really want to be a good problem solver in order to solve any problems in my maths lessons and outside of my maths lessons.

Anyway, I think it's time to get started with today's lesson.

Let's get going.

In today's lesson, we are going to be comparing the lengths and the heights of different objects.

For this lesson, you'll need something to write with and something to write on, such as a pencil and piece of paper.

You will also need a range of different sized objects.

This can be some of your toys such as a doll or a teddy bear, or it could be a household objects such as a cup or a chair, or maybe some stationery like some different size pencils, pens, crayons.

Before you get your items, double check with your parents or carer that you can use them.

If you haven't got what you need, pause the video now and go and get everything you need.

Okay.

Hopefully you've got your items and you're ready to go.

Let's look at our agenda for today.

We're going to be comparing the height of some everyday objects that you're going to have a go at comparing the height and length of objects in your home then there's an independent task, and finally, there's an end of lesson quiz.

Before we start comparing the length and the height of different objects, let's do a quick brainteaser.

Look at the images, which of these images show half? Now you might want to remind yourself of what we mean by half.

If something is divided in half, it splits into two equal parts.

Both parts need to be equal and there are two parts.

Looking at this rectangle, we can see it's been split into two equal parts.

So this image here does show halves.

Now here, we've got three paperclips in one circle and one in another.

These are not equal.

Although there are two parts, they are not showing half.

Okay.

Pause the video now and have a look at the other images and see if you think it shows half.

Hopefully you've had a go at pointing out which of these show half.

Let's have a look together.

So we can see that our rectangle shows half, our apple show half because there are two equal parts.

This one doesn't show half because the parts are not equal.

At the bottom, this isn't showing half.

Although the parts are equal, there are three in each part, there aren't two parts, they're actually full parts.

Similarly, this one has four parts.

Finally, this blue shape here is showing half because it has been split into two equal parts.

Okay, let's go on to our measuring topic.

Here we have our big picture showing the story of Pinocchio.

Do you the story of Pinocchio? Well, Pinocchio is a boy made out of wood and he's created by his owner, Geppetto.

This picture shows Geppetto's workshop and all of the things that he's been working on.

What can you see in the picture? Can you see some toy soldiers? Can you point to them? That's right, they're just here.

Can you see a doll? I can see different types of doll.

I can see this one, I can see this ballerina doll.

Now in the picture, there are lots of different things that we could measure.

Today we're going to be thinking about measuring how long something is and how tall something is.

Now looking at this piece of material, we could measure how long it is because it's sitting flat.

But looking at the chair, we would measure how tall it is because we would look at it vertically from top to bottom or bottom to top.

We can say that the material is long.

The chair is tall.

Can you say that? My turn, your turn.

The material is long.

The chair is tall.

Let's have a look at this next image.

Here we have two children.

Who is taller? Who is shorter? We can say, the boy is taller than the girl.

Your turn.

We can say, the girl is shorter than the boy.

Your turn.

For your talk task, I'd like you to find somebody in your household that you can compare your height with.

Who is taller? Who is shorter? This might be your parents or carer or somebody else in your household.

If you haven't got anybody else with you, you could look for an object that's taller than you or an object that's shorter than you.

You need to use these sentence stems to help you explain, I am taller than.

I am shorter than.

Pause the video now and go into your talk task.

When you finished, come back to the video and we'll carry on.

Okay.

Hopefully you had a go at that, using our key words, I am taller than, I am shorter than.

Let's have a look at longer and shorter.

Now, if something's laying flat, we don't describe it as tall, we describe it as long.

The purple block is six cubes long.

The green block is four cubes long.

It is shorter than the purple block.

We can say that the purple block is longer than the green block.

Let's have a look at these lengths.

Geppetto wants to make some strings for his Pinocchio.

Let's see if we can put these rods, which represents strings in order from shortest to longest.

Which one do you think is the longest? Can you point to it? Which one do you think is the shortest? Can you point to that one? Let's order them.

Now I've ordered them from longest to shortest.

My purple rod is the longest.

Can you say that after me? My purple rod is the longest.

Your turn.

My blue rod is the shortest.

Your turn.

Okay.

We can also use words like longer and shorter.

My green rod is longer than my pink rod.

Can you say that? My pink rod is shorter than my green rod.

Your turn.

What other sentences can you say about these rods? Pause the video and see what other sentences you can use.

Okay.

Now, if something is stood up and we're measuring from bottom to top, we compare its height.

We can measure how tall something is.

Which of these objects is the tallest? Which of these objects is the shortest? Can you point to it? I can say that the lamp is the tallest object.

The jar is the shortest object.

I could also say, the doll is taller than the jar.

The jar is shorter than the doll.

What other sentences could we use? Can you have a go at making some of your own sentences? Pause the video quickly now and see if you can describe the objects using some of our key words today, tall, short, taller, shorter.

Let's have a look at our cubes again.

Now remember, when we were looking at these cubes which were laying down, we compared their length.

We talked about which one was longer and which one was shorter.

When we look at our cubes standing up from bottom to top, we compare their heights.

We look at which one is shorter and which one is taller.

We could say here, the dark blue cubes are taller than the yellow or the green.

But here, we would say the purple block of cubes is longer than the yellow block or the blue block.

The blue block is the shortest.

Here's our key words.

Shortest, tall, tallest.

Let's have a look at the length.

Shortest, short, longest.

Here we are looking at the length, and here we are looking at the height.

It's time for your independent task.

This is quite a fun one.

I want you to go rounds your own household, of course, check with your parent and carer before you do so.

But you need to find three objects that are taller than you.

Then, find three objects that are shorter than you.

Once you've done that, try task two.

Can you order the objects from the tallest to the shortest? Where would you go in that order? Would you be taller or shorter than some objects? Use our key words that you can see on your task to help you describe.

I wan to make sure that you're all talking and using these words as you're doing your task.

Pause the video now and go off and do your task.

If you finish, there is a challenge question two.

Can you order all of the people in your household? If you'd like to, please ask your parents or carer to share your work with Oak on Twitter, you tagging @OakNational and #LearnwithOak.

Now that you finished your task today, have a go at our multiple choice quiz.

Hope you enjoyed the lesson.

Thanks guys.

See you soon.