Lesson video

Hello, my name is Miss Jarecjan.

you've made a great choice to learn geography with me today.

I'm so pleased that you've decided to complete your learning with me.

We're going to do brilliantly.

Let's start our learning for today.

Welcome to today's lesson from our unit on land use.

How diverse are local and UK landscapes? This lesson is called "Using Grid References to Identify Land Use".

You'll be learning to use four figure grid references to identify different examples of land use in your local area on a one to 25,000 scale map.

Some of the learning is brand new, but I'm here to help you.

This links back to previous learning you might have done exploring your local area and identifying types of land use on aerial photographs and maps.

We will build on and develop learning you may have done on different types of land use in the UK.

I'm really excited to get started.

I hope you are too.

The key words that we'll be using today are vertical, horizontal pasture and agriculture.

Let's do my turn, your turn.

Vertical, vertical, horizontal.

Horizontal, pasture, pasture.

Agriculture, agriculture, well done.

I want you to be using these keywords throughout our lesson as well.

Let's think in more detail about what our keywords mean.

Here are the definitions of our keywords.

Something vertical stands upright or points upwards from the ground.

Something horizontal is parallel to the ground.

Pasture is land with grass and other low plants suitable for livestock to eat.

Agriculture is a science and practise of cultivating soil and farming.

These are the learning cycles that we'll be working through together in today's lesson.

First, we'll be learning about what four figure grid references are.

Then we'll be identifying land use and using grid references.

Are you ready to start your learning today? Fantastic, let's begin.

Ordinance survey maps use a numbered grid to help give us locations on maps at different scales.

Here are the grid lines and here are the grid numbers.

The National Grid divides Great Britain into 100 kilometre by 100 kilometre squares.

These are then each divided into more squares for more smaller scale maps.

See how we are expanding each square to get more detail from smaller scale maps.

Let's have another check here.

What length and width are the grid squares on the national grid? Is it A, 10,000 kilometres, B, 100 kilometres or C, 10 kilometres? Pause the video now and have a go at answering this question.

Did you answer B, 100 kilometres? Well done, that's right.

Give yourselves a thumbs up.

Blue grid lines, the horizontal lines are called northings because the numbers get bigger as you move north.

The vertical lines are called eastings.

As the numbers get bigger, you travel east, which is towards the right on a map.

Let's have a check here.

So this is a true and false question.

The horizontal blue lines on a map are called northings.

Is that true or false? Pause a video now and answer this question.

Did you say true? That's correct.

The horizontal blue lines on a map are called northings.

Now let's think about justifying our answer and explaining why it's true.

Are the horizontal blue lines called northings because A, northings point north, or B, the numbers get bigger as you move north? Pause the video now and justify your answer.

The correct answer is B.

The horizontal blue lines on a map are called northings because the numbers get bigger as you move north.

Well done, give yourselves a thumbs up.

Let's continue with our learning now.

Each square on the map has a four figure number.

This allows us to locate places on a map.

Here are two examples of a four figure grid reference, 26, 84 and 26, 80.

Let's find out how we work out the grid reference together.

To find the number of the grid square we look at the bottom left corner of the square we want to locate.

That's the square that we want to find the number for, and that's the bottom left corner that we look at.

To find the four figure grid reference, we first go east along the corridor and look for the number to the left hand side of the box.

So this is the corner that I'm looking at in this example and here in the box are all the boxes that share the same vertical grid reference, which is 25.

We then go north up the stairs and we find the number at the bottom of the square we want.

So in this box are all the boxes with the same horizontal grid reference, which is 84.

We put those numbers together to create one four figure grid reference, which is 25, 84, and then we can locate the area that we are looking for.

Here's another check.

What is the four figure grid reference of Godrevy Island? And here's Godrevy Island.

Pause the video now and work out the grid reference.

How did you get on? Shall we do this together? Remember, let's look at the bottom left corner of the grid we want to locate and go along the corridor.

The number of the vertical grid is 57.

Next, we go up the stairs and locate the number of the horizontal box, which is 43.

So we put both of these numbers together to find the four figure grid reference of Godrevy Island which is 57, 43.

Did you get that as well? Well done.

You had to work really hard there.

It's now time for task A.

We're going to play the grid reference game.

First you have to identify the grid reference for the hospital on this map.

Then select three places or features on the map and ask your geography buddy to find the four figure grid reference for each one, you've got to check their answers.

Then I want you to identify the grid references for three places of your choice.

Pause the video now and complete task A.

How did you get on? Here are some four figure grid references I found for some features on the map.

The grid reference of the school is 24 82.

The grid reference of the hospital is 25 81.

The grid reference of the public toilets is 22 83 and the grid reference of the nature reserve is 21 82.

Well done for completing your first task.

Let's continue with our learning.

Now we're going to identify land use using the grid references.

Here are some images of different types of land use.

Can you guess what they are based on the images? What other types of land use are there that aren't pictured? Pause the video now and share your answers.

Great, let's go through them together.

Types of land use can be represented using some clues in the map.

We have pasture, arable, woodland, artificial surfaces, moorland and heath, peat bogs and others such as natural grassland, salt marshes and bodies of water like lakes and rivers.

Here are some symbols which you can see on a map to represent some of them.

So let's have another little check here.

Using the one to 25,000 scale map, can you find any evidence of the following land use categories, woodland or artificial surfaces? Remember you must look at the bottom left corner of the box you want to locate and you've got to go along the corridor.

So you're looking at the eastings first and then up the stairs and they're called the northings.

Pause the video now and complete this check.

How did you get on? Did you find the woodland at the grid references 25 81 and 26 81.

Well done if you did.

Did you find the artificial surfaces at 24 81, 24 82, 24 83 and 24 84? Well done if you did.

Good job everyone.

This is really tricky learning, but you're doing so well.

We can label a blank 10 by 10 grid with the eastings and the northings numbers.

So each square on our blank grid matches one of the grid references on our map.

Once we identify the main type of land use in each grid, we can colour code our map.

Look at grid square 75 66.

Although there is woodland and some agricultural land, more than half of the grid is transport and buildings, so it can be classed as artificial surfaces.

I'm going to look at my key and check which colour I should code it with.

It's a pinky peach colour, so I've coded that grid square as that colour to show that area of the map's main land use is artificial surfaces.

It's now time for task B.

Can you complete the land use grid using the map and the key? Similar to how I did to work out the main types of land use for each box in the grid, pause the video and complete task B.

How are you getting on? Can you see how I've started to build up my grid with a colour code to show the types of land use? Once you've done them all, you can total them up to see how many boxes of each type of land use there are and you can see which one is more common or less common in the map that you're working on.

Pause the video and complete your learning.

How did you get on? I've completed the task and found that in this grid, there were 30 squares of artificial surfaces.

Three with moorland and heath, zero peak bogs, zero arable land, 31 squares of woodland, 24 squares of pasture and 12 other, which could include things like natural grassland, salt marshes and bodies of water like lakes and rivers.

If we were to look at another area, we would see a different number of coloured boxes for each type of land use.

The main use of land depends on the location within the UK, so there's quite a lot of artificial surfaces in this map that I'm looking at, but there's also a high number of woodland areas as well.

Here's an example of land use in our school.

Can you see the numbers of the boxes coloured under each type of land use are different from the one that we just worked through? Focusing on land use around our school, we can see that obviously there's a lot of artificial surfaces because our school has got a lot of areas with buildings and tarmac.

There's also quite a high amount of woodland as well.

There's 32 squares of woodland and 32 squares of artificial surfaces, which is quite a good balance considering that when we look at land use in the UK in general a little bit later on, there's only 10 squares of woodland represented.

So this is quite a green area that I'm looking at in my school and we can compare what we found out about land use from this example to land use across the UK to see if there are any similarities or differences you can notice.

Total up the numbers of boxes on each grid on the right to see how many of each type of land use is used across the UK.

Is there anything surprising there? Pause the video and discuss this as a class.

Now, if we compare the land use around our school to the land use in the UK, we can see that the land use in my school has got a lot more artificial surfaces, but it also has a lot more woodland than the land use across the UK in general.

So that means that the area that my school is in has got lots more trees and is a lot healthier for me to breathe in.

In the map showing land use in the UK, you can also see a high number of land use for arable surfaces, all the squares that are in yellow and the land use around my local school doesn't have any areas that I've been used for arable farming, so that's a difference there as well.

Have a look at these two grids and see if you can find any more patterns.

If you see anything that's similar or anything that's different, pause the video now and share your discussions.

I'm sure you had had a really interesting discussion about how land is used in different areas of the UK and you've had a really good discussion contrasting your local land use compared with land use across the UK.

Well done, you've worked really hard in today's lesson and you should be so proud of your learning.

Give yourself another thumbs up.

Let's go through a summary of the learning that we've completed together today.

The map of Great Britain is covered by grid squares measuring 100 kilometres across.

Vertical lines are called eastings, and that's because the numbers get bigger as you travel east on the map.

The horizontal lines are called northings as they get bigger as you travel more north on the map.

The main use of land depends on the location within the UK.

You've been fantastic today.

Give yourselves one last thumbs up and well done for joining me today and sharing your learning with me.

See you next time for more geography lessons soon, bye.