Hello there.

My name is Mr. Wilshire and in this lesson we're going to be looking at the circulatory system in humans.

This is the planning stage.

The outcome for this lesson is I can draught information about the circulatory system in humans and plan how to present it to others.

Here are a few keywords that are going to appear as the slides progress.

The key words for this lesson are blood vessels, circulatory system, heart, flow chart, and draught.

Don't worry if you're not too sure what some of these words mean.

As they get used throughout the lesson, you should start to understand them.

But the definitions are here.

So if you'd like to pause the video now just to remind yourself, do so now.

Restart when you've done that.

The first part of our lesson is called the circulatory system.

Our body is made up of different systems. They're all working together to keep us alive.

Sophia says, "I think the body is a system like a computer with lots of moving switches and wires." Hmm, I wonder what you think here.

Is our body made up of lots of different wires? Is it made up of lots of different circuit boards? Let me think, Discuss this, restart when you've done that.

I wonder what you discussed.

Do you think that your body is full of wires? Let's find out more.

A system is an organisation of different organs, arranged so that together they can perform complex functions for the body.

Here you can see a diagram of the human body and there's a question mark in the middle.

So which systems of the body do you already know and what do they do? Have a think about this.

Restart the video when you've done that.

So what kind of systems have you thought about? Let's delve into it some more.

Different systems in the body include this one.

Can you name this system? This is a skeletal system, a collection of bones in the body that help you to move and also provide some protection.

How about this system? Can you name this one? This system is a digestive system.

It's what helps you to digest your food and break it down into those all important nutrients.

And last of all, we've got this one.

Can you name this system? Yeah, this is our muscular system.

These are all the muscles that helps your body to move.

So what do you know about the skeletal, digestive, and the muscular systems? Pause the video now and have a quick discussion.

What do you know about those different systems and what do they do for your body? Restart when you've done that.

Let's have a further think about these different systems in our body.

Aisha here says, "The skeletal system is your body's support structure.

It gives its shape and it also allows movement.

It also protects the organs." Oh yes, I remember the breastbone and the rib cage there comes together to protect your heart, don't they? And Andeep says, "The digestive system breaks the food that we eat up and then it transfers water and nutrients into the bloodstream." Oh yes, it does that through the small intestine, doesn't it? And finally we've got Laura who says that the muscular system is responsible for the movement because they're all attached to the different bones, organs, and blood vessels.

Yeah, so your bones can help you to move, but without the muscles pulling on them, they wouldn't move at all, would they? All of these systems work together to help you to move, to do things, to breathe, to eat things, lots of very important jobs.

Now, another system in the human body is called the circulatory system, and it consists of three very important components.

What three body parts do you think make up the circulatory system? This system is a system that allows your blood to circulate around the body.

So have a think now, pause the video, and have a think which three body parts make up that system.

I wonder what you discussed and if you thought about these three items, I'm showing them on the screen now, so I wonder if you can name them.

The first one here, this is the heart.

And the heart beats thousands of times across a day to pump blood around your body.

Next up is the blood, and this is what blood would look like underneath a microscope.

Here we have blood vessels and the blood vessels connect to the heart to allow it to pump blood all around the body, taking oxygen and nutrients and getting rid of carbon dioxide and other waste.

So the circulatory system contains the heart, blood and the blood vessels.

Here you can see that the heart pumps the blood all throughout the body.

They all need to work together to ensure that blood circulates around the body and then it can perform important functions.

Remember, there are lots of other different organs and tissue and muscle matter in your body that need blood in order to work.

Blood can also carry the oxygen and nutrients your body needs to stay healthy and alive.

So let's stop and think, which three body parts make up the human circulatory system.

The answer here is C, the blood, heart and blood vessels.

So the circulatory system is responsible for the flow of blood through the heart and around the body.

It goes through tubes called blood vessels.

Here is a drawing of a blood vessel with all the blood flowing through it, and Sophia here says, "What does blood carry to all parts of the body and what does blood carry back from the body to be removed?" Hmm, I wonder if you've been listening as I've been talking? What types of things are carried to the body and what kind of things are taken away using the blood? Pause the video here and discuss.

<v ->Restart when you've done that.

</v> Hopefully you've had a good discussion thinking about the different things that blood does for us.

Were you correct? The blood, as Aisha says, supplies the body with nutrients and oxygen.

Andeep says, "It removes waste products that it doesn't need, like carbon dioxide." As all of the muscle and organ matter in your body that works will use that oxygen and get rid of carbon dioxide.

It's a blood's job to take that carbon dioxide and expel it through the lungs.

Laura says, "If blood transports oxygen, why are the lungs not a part of the circulatory system?" Oh, well that's a very good point, isn't it? Oxygen is needed to travel in blood to go to different parts of the body.

Here you can see the circulatory system and the heart.

You can also see that the lungs are just behind this system as well.

So what do you think? Are the lungs not a part of the circulatory system? Discuss this and restart the video when you've done that.

So what did you discuss? Have you decided? Let's look into it some more.

Well, the lungs are actually a part of another system in the human body called the respiratory or the breathing system.

Here in this image you can see blood vessels stretching their way to the lungs to absorb oxygen.

So although the blood vessels are connected to the lungs, the lungs do a job that is very, very different.

The blood vessels running nearby the lungs, are able to absorb oxygen into the blood and then take it to elsewhere in the body.

The circulatory system supports a respiratory system by bringing blood to and from the lungs.

Remember, that's very important.

Blood just isn't there to transport oxygen, it's also there to get rid of carbon dioxide.

So out the lungs, blood picks up oxygen and drops off carbon dioxide.

Here we can see three different parts, the lungs, the heart and the body.

So blood collects oxygen from the lungs.

The arteries transport this oxygen rich in blood from the heart to all different parts of the body.

What was the name of that blood vessel that carries the depleted blood? The one that doesn't have any oxygen? It was the veins.

Veins transport blood that has collected carbon dioxide from the body back to the heart and blood carries carbon dioxide to the lungs to be exhaled.

All goes in a constant system and it's very important that the blood flows in the correct way, or otherwise, there could end up with being some blockages.

Let's stop and think.

The lungs are a part of the circulatory system.

This is false, but can we justify our answer? Which of these statements is correct? The answer is A.

The lungs are a part of the respiratory system which supplies oxygen to the circulatory system.

So although they need to work alongside each other, they are not a part of the same system.

Stop and think again.

True or false, the circulatory system removes waste.

The circulatory system does remove waste.

This is true.

Let's justify our answer now.

Which of these statements is true? The answer is A, again.

The circulatory system supplies the body with nutrients and oxygen and removes waste.

So it does all of those things.

It supplies the body with good things and gets rid of the things that we don't need.

This brings us onto task A.

You need to make a matching card game to help you identify and name each part of the circulatory system.

You can use this table to help you.

For example, the name there, the heart, the diagram is this picture of a heart.

You may wish to label it as well, and the function, well, that's for you to fill out.

You need to think of the function that this item can do.

You can cut out all the cards, shuffle them up, and then challenge each other to match them up.

It's up to you to think about the types of things that are in the circulatory system from the knowledge that you've picked up over the slides.

Best of luck with this task.

Restart the video when you've done that.

Now, your card game could have looked a little something like this.

Here you can see there's the heart and this pumps blood around the body by contracting and relaxing.

There's blood there and they've put a little diagram together there pointing out that four different composition.

Next up is blood and you can see that there are different parts of blood that have been labelled on this diagram.

This transports oxygen and nutrients, and the waste products, don't forget.

Arteries, they transport oxygen rich blood around the body and the veins transport blood low in oxygen around the body and the blood vessels, other tubes through which blood flows around the body.

Remember, they're not like wires.

They're much more like very tiny tubes.

Let's move on to the final part of our lesson, planning to present the circulatory system.

Lucas would like to explain to his friends how the human circulatory system works.

There's Lucas there and how can he make sure that his explanation is correct and easy for his friends to understand? There's a lot of information here, isn't there? How can he put it all together? He says, I need to make a plan of the information to include when I explain how the heart, blood and blood vessels work together in the human circulatory system.

Laura says, "Well, you could draw a diagram to show what happens at each stage of this system, in the correct order." "Oh, good idea," Lucas says.

"Then I can explain what happens at each stage in a bit more detail." Very good, yes.

What type of diagram might Lucas draw here? Have a discussion.

Have a think and restart.

Hopefully you've come up with some good ideas.

What would be a useful diagram to use in this case? Well, Lucas could use one of these.

It's a flow chart and it explains the stages of the human circulatory system.

Here is an example of one.

Sometimes in a flow chart, as you can see at the top there, there can be different yes or no answers, which take you onto another section.

A flow chart is a diagram using boxes, lines, and arrows that show the step of a process from beginning to end.

You may have seen one of these before or maybe you've had to go making your own, especially if you've been trying to make something in a DT lesson or maybe you've had to go designing how to make something in your food lesson as well.

Here, it's the start of the flowchart.

Here are some decisions that could be made and maybe some yes no questions, and at the very end there, well that's the end.

That's the end of the flow chart.

Remember though, the circulatory system does go in a constant loop, doesn't it? So you'll need to think about how you're going to start your flow chart here.

So Lucas begins his plan using a flow chart.

Start, it says there and he says, "I need to think about how blood is pumped around the body and the order in which it's done as well." He's decided to start with the heart.

The heart pumps blood to the lungs to collect oxygen.

Blood rich in oxygen is returned to the heart to be pumped around the body.

So those are two sections there.

I wonder what's going to be the next thing that Lucas will use in his flow chart.

If you were to do this yourself, you might decide to start in the lungs, if you think that oxygen getting into the blood is more important than starting at the heart.

Let's stop and think quickly.

Which of these is an example of a flow chart? The answer here is B.

B is an example of a flow chart.

I can see a line diagram and a pie chart there, and Lucas is a bit worried though.

He says, "Sometimes when I plan things, I don't always do everything in my plan, because I might change my mind." If Lucas changes his mind, is he allowed to change his plan? Hmm, discuss this and restart the video when you've done that.

Whatever you've been planning, I'm sure it was very, very interesting.

Hmm, are you allowed to change a plan? Let's find out more.

Well, writing a draught plan gives you an opportunity to find different ways of improving your work.

Just because it's been written down once doesn't mean that it's perfect first time.

A draught plan can be written down or it can be drawn.

It's just something to record your initial ideas.

The word draught means testing ideas.

You may be inspired by new information or need to use more scientific vocabulary.

A plan only helps you to get your ideas in order.

If I'm planning something, I like to do it in advance.

I like to think about it properly beforehand, and then I know that if I change my mind or if I have another idea in the future, I can add it to the plan.

Sometimes you might think better when you are out and about or maybe when you are relaxing in bed, then, you can come up with those ideas.

You can add it to your plan.

So Lucas looks back at his flow charts and he says, "I'll keep planning my presentation using a flow chart and I can go back and change my ideas as this will be my draught plan." So the heart pumps blood to the lungs to collect oxygen.

Blood rich in oxygen is returned to the heart to be pumped around the body.

I wonder if there's anything there that he has changed.

So what stages of the circulatory system come next? Have a think now with your partner.

Restart the video when you've done that.

So what stages of the circulatory system come next? Well, you are going to need some of that information for the next task, so keep that knowledge in your heads for now.

So stop and think.

True or false? Writing a draught plan means you cannot change your mind.

The answer here is false.

Of course, you're allowed to change your mind, but can we justify this? Well, the answer here is A.

When you write a draught, it gives you the opportunities to find ways of improving your work, which brings us very nicely onto the final task for our lesson.

There are two sections to this.

First one, is to use a flow chart to make a draught plan that shows the steps of the human circulatory system from beginning to end.

There, is an example for you.

There's the start and there's two sections to get you going.

It's up to you now to continue using this flow chart and put things into the right order.

I wonder if you can remember everything that happens.

Don't worry if you're not too sure because the second part of this lesson is going to help you to remember and add some extra parts to your draught plan.

Pause the video now and have a go at that task.

Restart, when you've done that.

Hopefully you've now got a good idea of what the circulatory system is like, but just in case, let's look at the next slide.

Part two here has some different sections that happen during the circulatory system.

Now you can use these cards and put them in order.

Then you can start making your own flow chart or maybe even add to your original draught plan.

Have a read through of these different cards and put them into the correct order.

Redraft your plan if you need to.

Pause video here and restart when you've done that.

Let's take a look at some answers.

If you were to put all of these in the correct order, this is how they would read.

Remember, the circulatory system does go in a circuit though, so there isn't really a start.

But in this case, we've started with the heart.

The heart pumps blood to the lungs to collect oxygen.

Blood rich in oxygen is returned to the heart to be pumped around the body.

When blood passes the intestines, it picks up nutrients that have been absorbed from food.

Blood delivers oxygen and nutrients to the body and picks up waste products, including carbon dioxide.

Veins, then take this blood low in oxygen back to the heart.

The heart pumps this blood low in oxygen back to the lungs and the lungs absorb more oxygen and get rid of the carbon dioxide.

Now, the blood is ready to be pumped around the body again.

And there, that's where we'll finish our flow chart.

Hopefully yours was very similar or maybe you had some other parts of this that we didn't include here.

However, you've created your flow chart as long as you've got the right information there, you've got a good draught plan to start presenting your own ideas.

Well done.

So let's summarise our lesson.

The circulatory system consists of the heart, the blood vessels and blood, all working together in the human body.

The circulatory system supplies the body with nutrients and oxygen and removes carbon dioxide that it doesn't need.

A flow chart is a diagram using boxes, lines, and arrows that shows the steps of a process from beginning to end and writing a draught plan gives you an opportunity to find ways of improving your work.

Hopefully, you are able to use some of this information in your own work as well.

Remember, if you're coming up with an idea, it's the best thing to do is to just write all your ideas down first and then you can start to organise them and put them into a correct order.

I hope that you go on to have a go presenting your own circulatory systems in either a poster or maybe you could even make your own presentation or video.

Best of luck to you.

I've been Mr. Wilshire.

Thank you very much for listening.