Hi, everybody.

It's Miss Larham here.

Can you tell me what your name is? Amazing, it is so great to meet you, and welcome you to today's design and technology lesson.

We are on lesson three of our design and technology journey, where we have been learning all about mechanisms. And so far, we have built lots of knowledge all about sliders and levers.

And we're going to continue to build that knowledge today in our lesson.

And I hope you have a really great time.

Right, let's have a look at what we are learning today.

Today, we're going to investigate the properties of everyday materials.

So we're going to have to use our science knowledge to help us with our design and technology lesson today.

And let's have a look at what we will be covering.

First we're going to start with our star words, and then we're going to have a think, what materials do we know? And then we're going to learn all about the properties of those materials, and to finish, at the end of the lesson, all together, we are going to do our end of lesson quiz to make sure all of that new learning we have done today is being locked inside our brains.

For this lesson, you're going to need some paper or an exercise book, and a pen or a pencil.

So if you need to pause the video now and go and collect the equipment that you will need, now's the time to do it.

You can press play when you're ready.

Fantastic.

Well done for collecting everything you need.

Let's get started with our lesson.

Okay, now it's time for our star words.

I'm going to say star words, and then it's going to be your turn.

Are you ready? Excellent.

Star words.

Star words.

Your turn.

Fantastic.

I'm going to say it in my deep voice.

Are you ready? Star words.

Star words.

Your turn.

Fantastic.

Well done for joining in.

Now we're going to have a look through our star words, and some of our star words say I'm going to put some actions to them.

So you're going to copy the word and the actions today.

Are your hands ready? Show me they're ready.

Excellent.

Well done.

Our star word is flexible.

Can you say it? Flexible.

Excellent.

And we're going to go flexible.

So we're going to push and do a twist.

Are you ready? Flexible.

Your turn again.

Flexible.

Excellent.

Our next word is rigid, and we're going to stand really still.

Are you ready? Rigid.

Your turn.

Rigid.

Excellent.

Our next one is stiff, and we're going to show stiff with our hands.

We're going to go stiff.

Your turn.

Ready? Stiff.

Excellent.

The next one is squash.

And we're going to go squash.

Your turn.

Squash.

We're going to squash it together.

Excellent.

Our next one is twist.

So you're going to twist your hands.

Ready? Twist.

Excellent.

Amazing copying.

Our next one is stretch.

We're going to go stretch.

Your turn.

Stretch! Excellent.

Our next one is your bend.

We're going to go bend.

Your turn.

Bend.

Excellent.

Let's do them all one more time.

Join in with me.

Flexible.

Rigid.

Stiff.

Squash.

Twist.

Stretch! And bend.

So when we say those words throughout our lesson today, we're going to add in those actions to help us to remember the words.

Well done.

Now, we're going to think about our first question.

What different materials do we know? Now, a material is something that an object has been made from.

So I bet you know lots of different materials already.

Now what I'm going to do is show you a couple of pictures, and you're going to tell me what material you think it's made from.

And I bet you can do this super quickly.

So are you ready? Fantastic.

Are you ready for the best picture? Okay, so we have a picture of a treasure chest, and there are some different materials on this treasure chest, and I have chosen two for you to have a look at.

So take a moment to think, can you name the two materials that the arrows are coming from? Take a second to think.

Fantastic.

Can you tell me? Tell your screen what two materials can you see.

Excellent thinking.

Let's see if you are right.

Let's have a look at the top arrow to start.

Wood.

Well done if you said wood.

Our treasure chest is made up of wood.

Now, what about the other material? Let's see if you were right.

Fantastic.

It also has some metal on it.

And that metal is used to close up the treasure chest, to keep everything inside nice and safe.

Well done if you knew that there was wood and metal on the treasure chest.

What a great start.

Are you ready for the next picture? Okay.

Okay, so we have a bottle of water being poured into a cup.

Now, just think, what material is the bottle made from, and what material is the cup made? So have a second to think.

Brilliant.

Can you tell me? Tell your screen what material is the bottle made from.

Okay, great thinking.

Now can you tell me what material the cup is made from? Great thinking again.

Now let's see if you're right.

Let's look at the bottle first.

So the bottle is made from plastic.

Well done.

Excellent job.

And let's check the cup.

It is made from glass.

Well done if you got both of those right.

That is amazing knowledge.

Let's see if you're ready for my first little quiz.

I've got two objects on your screen.

I have got a fork and I have got a bucket and spade.

Your job is, can you point to the object that is made from plastic? Off you go.

Put your finger on this screen.

Which one is made from plastic? Made your choice? Excellent.

Let's see if you're right.

The answer is bucket and spade.

Well done.

These are made from a plastic.

As you can see, the fork is made from metals.

If you had your finger on buckets and spade, well done.

Okay, so now we're going to make a mind map that helps us to answer our question: what different materials do we already know? Now, a mind map helps to capture all of the thinking that goes on inside of our head.

It helps us to think, it helps us to collect all of our knowledge and remember our ideas.

So making a mind map helps us to become a better thinker.

Now I'm going to give you an example of how it gets started with your mind map, and then it will be your job to finish it off, okay? Oka, so when we make a mind map, we start by writing in the middle what we're going to be collecting ideas about.

So we're going to be collecting ideas about materials.

I'm going to write materials in the middle of my page and then I'm going to put a bubble around the outside.

So can you pause the video and write materials in the middle of your page, and then press play when you have got to this stage? Off you go.

Fantastic.

Well done for doing that.

Now, what we do, is we write down all of the ideas, all of the materials that we know around the outside of our bubble, and we do this by drawing a line of it, so I might start here.

So one of the materials we've already looked at today on the treasure chest was wood.

So I know wood is a material, so I'm going to write this down.

There we go.

Another material that was on our treasure chest was metal.

So I'm going to record that one as well.

So now what your job is, is to carry on recording around your mind map all of the different materials that you know.

So you're going to fill all of these gaps, and you might like to have a look around, take a walk around your house for ideas.

You might see some things as you walk around.

When you have filled out as many materials as you can think of, you're going to press play and join us again.

Good luck.

Well done, everybody, on completing your mind map.

I have finished my mind map as well, and I've put it up on the screen for you to have a look at.

So one of the objects I found in my home was this bowl that I use to make my cakes in.

And I found that this bowl was made of plastic.

I also found next to my sink, I found a sponge that I do my washing up with.

I also found an elastic band, so I found some rubber, and this was around my post this morning, okay? Can you tell me now.

Take some time to tell me three materials that you've thought of or that you found in your head, so tell me three.

Off you go.

Brilliant.

Great choices.

It sounds like you've found some excellent materials around your house.

Now, what I'd like you to do now is choose one of the materials from your mind map.

So for example, you might choose metal, and you're going to tell me the object that you found that was made from metal.

So, you know from the picture that we had before I found a metal fork.

Now, can you tell me the material and the object that you found.

Off you go.

Tell me now.

Excellent, I love that you can tell me the object, and the material that it was made from.

That's fantastic knowledge.

Well done.

Okay, so now we're going to look at the properties of the materials that we noted down on our mind map.

Properties just means how do we describe the material? So we're going to think about some of star words now, and use those to describe the properties of the materials on our mind map.

Let's have a look at the properties of the materials.

So our first word is bend.

Can you do it with me? Ready? Bend.

How do we check to see if the material bends? So what we do, I've got some modelling dough here to show you, so we push on both sides and see if it curves over.

So that's shown that this modelling clay, this modelling dough can bend.

We push it over on the side and it bends.

Let's have a look at our next word.

The next word is twist.

Can you do it with me? Twist.

Excellent.

How do we test to see if a material twists? Let me show you with my modelling dough again.

So we push on one side and pull on the other.

See if it will twist and turn.

Okay, I'm pushing and pulling, and I can see that the modelling dough is moving around with my fingers.

So this can twist.

It can bend, and it can twist.

Excellent.

Our next one.

Do you remember this one? Squash.

Do it with me.

Ready? Squash.

Excellent.

How do we test to see if the material can be squashed? I'm going to use my modelling dough again to show you.

So I'm going to push on both sides and see if the material gets closer together.

Ready? Push.

Squash, squash.

Can you see it's changing shape as I squash and I push it? I can squash my modelling dough.

It started as a sausage shape, and now it's a ball shape 'cause I squashed it, I pushed it together.

Now let's have a look on next one.

Our next one, do you remember this one, is stretch.

Do it with me.

Stretch! Excellent.

Now, how do we check to see if a material can stretch? And what we have to do is pull this time.

So we pull a material and see if it gets longer.

So let's try.

I'm pulling it and it's getting longer.

It's not very stretchy though, because it broke.

If I pull and it gets longer, I can stretch it, but you don't want it to break though.

Now we're going to have a go at doing a task.

And our task is all about testing the properties of some of the materials we can find in our home.

So if you open up your worksheet you will find this table here for you to print off and to use.

I'm going to quickly show you how we fill it in.

Okay, I printed off the worksheet, and I'm going to quickly show you how to fill it in.

So I've done one already, where I looked at my metal spoon.

So I wrote down that the material was metal.

And then I went across all of the questions and I put a tick if it was right or a cross if it was wrong.

So the first question says, "Does it stretch?" Remember how Miss Larham showed you how to stretch something? So we take our material and we pull it.

If it gets longer, then it's stretchy.

But if it stays the same, I can't move it, I can't stretch it, it is not stretchy.

So I put a cross, and then I'm going to check, does it squash? I'm going to push it.

If it moves, it squashes.

If it doesn't, pushing it really hard, it doesn't squash.

So I've put in a cross.

The next one says, "Does it bend?" So remember we take the ends and we push it down.

I push down and it doesn't move.

So I put a cross.

It does not bend.

And the last question is, "Does it twist?" So then if I push on one end and pull on the other, and if it moves, it twists.

If it doesn't, my spoon does not move when I push and pull, it does not twist.

So the next material I'm going to try is my sponge.

So where it says material, I'm going to write sponge.

And we're going to go through the questions again.

So does it stretch? Can I pull it? No, it doesn't stretch.

It doesn't get longer when I pull it.

So I put a cross.

I'm going to check, does it squash? I push it and if it moves, it's squashy.

Ready? Oh yeah.

That's definitely squashy.

I can push it and it moves.

So I'm going to put a tick because, yes, it does squash.

Now I'm going to try and bend it.

Remember curving it.

Oh, look, it moves when I push each end.

So yes, it does bend.

My last question says, "Does it twist?" If I push and pull, does it move? It does.

Look.

My sponge is twisting, so I'm going to put a tick, because it does twist.

I'm going to try one more.

I'm going to try paper from my exercise book.

I going to write paper and material.

Let's go through the question.

Does it stretch? Does it pull and get longer? No.

Does it squash if I push it together? It does squash.

It moves in when I push it on each side.

Does it bend? Let's try.

Yes, definitely bends.

And does it twist? It does twist, so I'm going to put a tick.

Now it's your turn to fill in this table here.

So choose some materials and go through the questions.

Tick if it does, cross if it doesn't, then press play when you have finished.

Off you go Well done everybody for completing your properties of materials tasks.

Now I want you to have a really good look down the table that you filled in, because I'm going to ask you to share with me a couple of examples that you found.

So take a moment to look down at your table.

Excellent.

Now I'd like you to tell the materials that you found that you were able to squash.

So have a look down your table, squash.

And ready to tell me? Off you go.

Excellent.

Well done.

Now the next one I want you to tell me about is a material that you found that you could twist.

So have a look down your table.

Ready to tell me? Twist.

Off you go.

Excellent.

Well done.

When I was looking around my house, I managed to find a hair tie that I tied my hair up with.

And when I pushed and pulled on each end, I could twist it around.

Well done, everybody.

It looks like you've got an amazing understanding.

What we're going to do now is take that understanding even further and learn some new properties of materials.

Okay, so now we're going to learn some more properties of materials, and they're super challenging.

So can we make sure we've got our thinking cap turned on and tied up tight, ready for our new words? So let's have a look.

So we're going to be thinking about the material that bends and twists.

So if you found something, a material that can bend and can twist, it's got a special name.

It's called flexible.

So when you can bend and you can twist, it's called flexible.

Now, if you found something that did not bend and it did not twist, it is called rigid.

If it can't move, we can't bend it and we can't twist it, it's called rigid.

So let's have a look at our next one.

So did you find something that could squash and stretch? So any material that you can squash and and we stretch it, it's called squashy.

So we can squash and we can stretch, it's called squashy.

But if we could not squash it, and we could not stretch it, it is called stiff.

It doesn't move, it doesn't squash, and it doesn't stretch.

Let's have a look at our next one.

Now, did you find anything that you can stretch, but when you let go, it pinged back? Like my elastic band, if I stretch it and I let go, it's going to ping back.

It pings back.

When you stretch it and it pings back, it's got a special name.

It is called elastic.

So when I stretch and it pings back, it is called elastic.

So let's do the whole thing together, following with the actions.

If you can bend and you can twist it, it's called the flexible.

If you cannot bend and you cannot twist, it is called rigid.

If you can squash and you can stretch it, it's called squashy.

If we cannot squash it and we cannot stretch it, it is called stiff.

And if we tried to stretch something and it pings back, it is just called elastic.

Now I'm going to give you a teeny, tiny little quiz now, but you need to know this information on your screen.

So if you need to take a mental photograph, now's the time to get your camera ready.

Have you gotten a picture? Can you remember it? Okay.

You ready for the quiz? What is it called when you can bend and twist a material? What's it called? Option one, is it flexible? Or option two, is it stiff? So when you can bend and you can twist, is it flexible or stiff? I would like you to point to which one you think is your answer after three.

One, two, three, point to your answer.

Are you ready? Let's see if you were right.

So if you can bend and you can twist it, it is called flexible.

Well remembered.

If it's bending and we can twist it, it is called flexible.

What super star thinking you have done.

Okay, now I'm going to set you on one more little challenge before the end of the lesson.

And we're going to be adding to the mind map that we made earlier.

So make sure you've got that in front of you.

I'm also going to use a different coloured pen, so you might like to use different coloured pen for the next activity as well.

I'm going to show you an example, and then you're going to get started.

Okay, so we're going to add our new learning about properties of materials onto the mind back that we created earlier.

So I'm going to look at one of my materials, I'm going to choose metal.

I'm going to look at my metal spoon, and we're going to test it out again.

So I'm going to check, can we bend it or twist it? No, we can't.

So I know that this is rigid.

So I'm going to add that one.

I'm then going check, can I squash it or stretch it? No, I can't.

So it is called stiff, and it doesn't stretch and it doesn't ping back, so it isn't elastic.

I'm now going to have a look at the sponge, and I'm going to test it again to see if I can add on the properties of materials that we now know.

So I'm going to check, can we bend it and twist it? Yes, we can.

So I know that this is the flexible, and I've added that to the word sponge.

I'm going to check, can I squash it? Yes, but can I stretch it.

No, so it's only squashy.

I'm just going to check.

Does it stretch and ping back? No, so I don't need to record that that is elastic.

So what I'd like you to do is use your mind map from earlier and choose a couple, you don't have to do all of them, that you're going to write down the properties of materials.

So test it out.

Does it bend, twist, squash, stretch, stretch and ping back? And you're going to record using your other colour, if you'd like to, onto your mind map.

Okay.

Off you go.

We have come to the end of another one of our design and technology lessons.

So let's do a quiz all together to make sure all of that new learning that we've done today, 'cause we have done lots of it, has been locked into our brain.

Are you ready for question one? Now, earlier I showed you a bowl that I use to make my cakes in.

Can you tell me what material my bowl is made from? Tell me now.

Fantastic.

You are right.

It is made from plastic.

Well done.

Our next question.

I'm going to show you one of the actions from all star words today, and you're going to shout, you're going to tell me really loud what action I am doing.

Are you ready? This is called? Fantastic.

It is called bend.

Well done.

So far so good.

Let's see if we can do our final question together.

Our final question is, the word that I'm going to describe as a properties.

So what is it called when I can stretch something and it pings back.

So when you stretch and it pings back, can you remember what that was called? Can you tell me now? Fantastic.

When we stretch something and it pings back, it is called elastic.

Well done, everybody on another fantastic lesson.

And I can't wait to see you all next time.

Bye for now.