Lesson video

Hello, everybody it's Miss Sidhu here.

We are going to produce some exciting maths.

Yesterday we looked at the toyshop but today we've got an exciting trip to the button shop.

Have you got any buttons? I'm not wearing any buttons today? Maybe you might want to look around to see if you've got any clothes with buttons.

Now, let's have a look at what we're going to do today.

We are going to be learning to calculate the amount of change needed.

That means we're going to be looking at the concept of change that we did yesterday and we're going to be buying some items from the button shop and also receiving some change.

Now, let's have a look where the button shop is.

This is lesson 10 for the topic of money.

♪ Money, money, money.

♪ That means next week, we're going to be doing a different topic.

But today you will need a pencil and some paper.

And there are times when you will have to pause the video to have a go at some of the activities yourself.

Now let's get started.

Today, we're going to be looking at a start of lesson quiz to see what you remembered yesterday.

Some key vocabulary, that means our star words, the concept of change, answering questions about calculating change from different coins, independent task and answers and finally a quiz to see what we have learned.

Before we start, I want you to pause the video to complete your start of lesson quiz and then restart once you've finished.

Star words, star words.

No, it's going to be my turn first and then your turn.

Buy, sell, change, pence, pounds, total, cost.

Before we get started, I want to see some of the things that you've been learning all about money and this is going to help us warm up our brains.

Do you think you could do the brain teasers for today? Super, I like your positive words that you're saying, yes, you can.

I want you to find out if it's true or false.

You need to be super detectives and find the answers.

There are three 50-pence coins.

Have a look.

I can see lots of you counting the coins and see if you can find three 50-pence coins.

Once you've got the answer, I want you to show me the thumbs up and say true or your thumbs down and say false.

Are you ready? Shout it out.

Ooh, I could hear lots of you say false.

Super, the answer is false.

There's only two 50-pence coins.

Now I've got another brain teaser to make sure your brains are working today.

True or false.

There are two five-pound notes.

So having a look at the notes and counting if there were two five-pound notes and then when you are ready, show me true or false.

Okay, ready, steady, go.

Shout it out.

You're so good today.

The answer is true.

There are two five-pound notes.

Wow, I think this is going to be super good lesson today because all of you are already using all of our brains to help us work out the answers.

Now, this is super exciting because we are going to be going to the button shop.

Look at all those wonderful buttons.

But I was in a today because on my jacket, I've got no buttons as you can see.

I want to buy a new button for my jacket.

Point to which button do you think I should buy.

There's some yellow buttons, a red button, a blue button or even a green button.

Which one shall I buy for my jacket? Can you shout out which one should I buy? Lots of things.

We have a 50-pence coin to spend.

So I've got my 50-pence coin to spend at the shop but none of those buttons cost 50 P.

That means I will get some change from the shopkeeper when I give the shopkeeper a 50-pence coin.

Hmm, what was change? Does anybody remember? Can you shout it out? Super, lots of you remembered from yesterday just to make sure that all of us have got it correct.

When we do not have the exact amount to pay for an item, the shopkeeper gives us change.

Change is the amount of money leftover when the shopkeeper has taken away the value of the item and the value of the item this time will be the buttons.

Now, which button could I buy? Everybody's shout out.

Can you point to which button shall I buy? Oh, lots of great ideas.

Some of you have said the blue button.

How much will that cost? Super, 30 pence each.

What about the yellow button? Can you shout out how much will the yellow button cost each? 40 pence and the green button? 20 pence each and finding the red button.

How much would the red button costs? 10 pence.

I think I might buy hmm.

I'm going to buy a red button for my jacket.

I think it will look nice.

But first I've got my maths story and I need some help in working out what equation represents this maths story.

So first I have a 50-pence.

Then I want to buy a red button which costs 10P.

And then now I want to get my change from the shopkeeper.

So how much change will this shopkeeper give me? So we need to find the equation which represents this maths story.

So remember we can't take away the 10P from the 50P, we have to exchange the 50P first for five 10P's.

Let's count 10, 20, 30, 40, 50.

And I need to take away the cost of the button which is 10P.

Can you say the equation for me? There were lots of you I like what you're thinking that you're doing.

Shout it out nice and loud so I can hear.

Good job.

50 pence take away 10 pence is equal to 40 pence because I have a 50-pence.

And then I take away the cost of the button which is 10P.

And then the change I get is 40 pence.

Wow, you're doing some super duper maths today.

Now let's have a look what we're going to do next here.

Here we've got the whole-part model.

What is the whole? Can you shout it out? What about the parts? The whole is 50P.

Remember we start with, we've got a 50-pence coin and we know one of the parts is our red button.

How much did the red button cost? Super, 10 pence.

And now the other part shows us how much change there is, well done.

And how much change should we from the shopkeeper? 40 pence, 10, 20, 30, 40, 40 pence.

I love that you're helping me work at how much change I need from the shopkeeper.

Now, this time Sai bought a different button.

He went into the button shop too.

Which button did he buy? How do you know? In the maths story, first Sai has a 50-pence coin.

Then he buys a button and now he gets 10, 20, 30, 30P from the shopkeeper.

What button did he buy? And you might want to use the part-whole model and thinking about how it will help us.

I want you now to pause the video and have a think which button did he buy? And how do you know? Then I want you to tell the person next to you.

How did you get on? Were you able to tell your person next to you how much change that he got and which button did he buy? Let's have a look.

So Sia bought a different button.

Which button did he buy? So he started with a 50-pence coin.

And we know that he had a 30 pence change.

Now, we need to work out the cost of the button.

So 50P take away 30P, how much change is left? Can you shout it out? Super, 20Ps, so the button costs 20P.

Now I need to find out which button did he buy? So which button costs 20P? What was the colour? Can you shout it out for me, please? Can you point to it, to the screen.

Well done, the green button costs 20P.

Well done, you've done some super, super maths today and you've helped me out at the button shop.

The shopkeeper is super duper happy because you've helped him with all of the correct change.

Now we've got a little bit of a challenge.

We are going to go shopping with a one-pound coin.

How many pence are in a one-pound coin? Can you shout it out? So how many pennies are in a one-pound coin? Remember, it's a big number.

I love that you all shouted out, 100 pennies.

There are 100 pennies in a one-pound coin.

So they have the same value.

Now, how many 10-pence coins are equal to one pound? Can you shout it out? It might help you to count in 10s.

Can you shout it out? How many 10-pence coins are equal to one pound? 10, 10-pence coins are equal to one pound.

I love that you're remembering all of our money facts that we've learned.

Let's count up in 10s just to check.

10, 20, 30, 40, 50, 60, 70, 80, 90, 100 super.

And we can use that information to help us today.

This time we are going to buy a yellow button which costs 40 pence.

So first I have a one-pound coin and then I buy a yellow button because I've going to change it from the red button now.

So I want my yellow button and the yellow button cost 40 pence.

Remember, we're going to exchange our one pound for 10, 10-pence coins and then we're going to take away the cost of the item.

And then now I have my change.

I want you to think about what equation expresses this maths story.

Can you shout it out? Nice and loud? Well done, 100 pence.

Remember the one pound is the same as 100 pence.

Take away or subtract 40 pence because 40 pence is the cost of the button is equal to 60 pence change.

So 100 pence is equal to 40 pence.

100 pence, subtract 40 pence is equal to 60 pence.

Thank you for helping me out with the equation because I was getting all muddled up.

Now let's have a look of what is next.

All ready we've got our independent task.

Whoa, you are flying through the maths today.

For your independent task, lots of the children are buying different buttons and they have a pound to spend and they need to find out how much change, some of the children have got the change but they need to think what buttons they bought.

I hope you have fun counting.

Now let's have a look at the answers.

I have one pound and I buy a yellow button which costs 40 pence.

How much change do I get? So 100 pence subtract 40 pence is equal to 60 pence.

I have one pound and I buy a blue button.

The blue button costs 30P.

How much change do I get? 100 pence subtract 30 pence is equal to 70 pence.

I have one pound.

I buy one button and I get 80 pence change.

What did I buy? So 100 pence subtract two 20-pence is equal to 80 pence.

So 100 pence subtract 20 pence is equal to 80 pence and 20 pence are the green buttons.

So the girl buys a green button.

I have one pound and I buy one button and I get 90 pence change.

What did I buy? So 100 pence subtract 10 pence is equal to 90 pence change.

And the button that costs 10 pence is the red button.

Wow, I hope you've had lots of fun at the button shop today.

And thank you for helping me by my button for my jacket.

Now, I want you to complete your end of lesson quiz and I will see you soon.

Bye.