# Lesson video

In progress...

Hello, welcome to today's lesson! Hope you're feeling good today.

We've got a nice, practical lesson today I'm really excited for.

Hope you're feeling well.

Shall we have a look at what we're doing today? Let's go.

In today's lesson, we are going to be measuring length using nonstandard units.

You'll need a piece of paper and pencil or something else to write on and write with.

You'll also need a range of objects to measure.

These can be objects from your house, such as toys, a teddy bear, a doll, or pieces of stationary such as pens or pencils.

Make sure you check with your parents or carer before gathering your objects.

You're also going to need some objects to measure with.

These objects need to be all the same size.

You could use paperclips, pencils, counters, cubes, and I'm going to use coins.

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

Here's our agenda for today.

We're going to start off by looking at using nonstandard units.

Then we're going to compare lengths using our nonstandard units.

Finally, you have your end of lesson quiz.

Here I've got my objects that I've found in my house.

I've got a fork, a box of tissues, a pen, and a hole puncher.

You might have different objects to me, and that's okay.

I've also got some coins.

I'm going to be using these to do my measuring.

You need some objects that are all the same size to do your measuring.

You might use coins like me, or you could also use counters, paperclips, or cubes.

Now I need to make sure I use coins that are all the same size.

If I use different size coins, my measuring isn't going to be accurate.

So I've got some 2p coins that are all the same size to help me measure.

I'm going to start off by measuring my pen.

Before I do my measuring, I'm going to estimate.

I can see the size of one coin, so I estimate that the pen will be around six coins long.

Let's check.

One, two, three, four, five.

I can't fit on the sixth coin.

My pen is about five coins long.

My pen is roughly five coins long.

Make sure that your items that you're measuring are all touching each other and all close together.

If I measured them with spaces, it's not going to give me the correct answer.

You need to make sure they're all in a line and all touching each other closely.

Now I'm going to measure my hole puncher.

I estimate that the hole puncher will be about four coins long.

Let's check.

One, two, three.

Have I measured that accurately? I haven't measured it accurately, because the coins are not touching.

There's a big space.

Let's move them closer together.

One, two, three, four.

My hole puncher is about four coins long.

How long do you think my tissue box will be? Can you make an estimate? Write your estimate down.

I know that my tissue box is longer than my pen, so I estimate that the tissue box will be eight coins long.

Let's check.

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

The tissue box is about nine coins long.

How long do you think my fork will be? Can you make an estimate? I estimate that the fork will be shorter than the tissue box.

So I think it will be about seven coins long.

Let's see.

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

The fork is about eight coins long.

Now it's your turn to have a go.

For your talk task, you're going to have a go at measuring the objects that you have using your nonstandard unit of measure.

Can you use sentence stems like them? Let's have a look at theirs.

The book is about 15 counters long.

The book is longer than the pen.

The pen is nearly seven counters long.

The pen is shorter than the book.

Once you've measured each item, can you compare them? Which is the longest object? Which is the shortest of object? Time to pause the video and go and do your measuring.

When you've finished, come back to the video.

Let's move on.

Hmm, I've had a go at measuring this pen.

The pen is five coins long.

What have I done wrong? I haven't measured accurately.

First of all, my coins are not in a straight line against the pen.

Secondly, there are some big gaps between my coins, so I haven't measured very accurately.

Let's see if I can measure this a little bit more accurately.

This time, my coins are nicely lined up.

We don't have big gaps between our coins.

So this should be accurate.

How many coins long is my pen? Can you count them? That's right.

The pen is roughly six coins long.

Once you've measured some objects, we can compare them.

Here, we've got some objects from our big picture.

I've measured them using cubes.

We're measuring height.

So we're going to be talking about who is the tallest instead of longest.

Who is the tallest? Let's have a check.

Got our princess here.

She's one, two, three, four, five.

The princess is about five cubes tall.

Our ballerina.

One, two, three, four.

The ballerina is roughly, or about, four cubes tall.

And our toy soldier is one, two, three, four, five, six.

The toy soldier is the tallest because he is six cubes tall.

Who is taller, the princess or the ballerina? Okay, the princess is taller because she is five cubes tall and the ballerina is only four cubes tall.

How much taller is the princess than the ballerina? Well, we can say she is one cube taller.

Five is one more than four.

I'd like you to make a table.

You can use the same objects as your talk task, or you can try measuring some different objects.

Use your nonstandard unit of measure, such as coins, or cubes, or counters, whichever object that you've chosen that is all the same size.

Once you've measured and completed your table, see if you can compare.

Which is the longest? Which is the shortest? Once you finish your independent task, come back to the video.