Lesson video

Hello, everyone.

And welcome to maths with Ms. Dobrowolski.

Today, we'll be learning about comparing capacity.

Let's have a look at today's lesson agenda.

First, we'll learn the language of comparison, then you'll have your talk task, then we'll compare capacities of three different containers, and then you'll be ready for your independent task.

For today's lesson, you will need a pencil and a notebook.

If you don't have these items, pause the video now and go get them.

Super! So, let's start.

When do we measure things? Pause the video now and write some ideas down in your notebook.

When do we measure things and what things do we measure? Super! So I know for example, that we measure when we want to know something's length.

That for example, my shoe size, right? I need to measure the length of my foot, so I know my shoe size.

And if I want to know how much of a distance it is from say London to Scotland, somewhere in Scotland, like Edinburgh, I need to know how many kilometres are in between.

I need to know the driving distance.

I also measure, when I want to know how much something weighs.

So for example, body weight is measured.

So you might go to the doctor, you might go to your GP and you might stand on a scale, and your GP tells you how much you weigh in kilogrammes.

Another measurement that we're going to learn today is called, capacity.

My turn, your turn.

Capacity.

The amount of container can hold.

Super! So let's have a look at measuring capacity.

Okay.

I have two containers here, which one holds more? The large glass or the small glass? Which one holds less? The large glass or the small glass? Well, I know that the large glass holds more than the small glass.

So the large glass has a greater capacity.

My turn, your turn.

The large glass has a greater capacity.

Super! I have four containers here.

Which one has the greatest capacity? The jar? The small glass? The vase? Or the large glass? Which one has the greatest capacity? Good! The jar has the greatest capacity.

It can hold the most.

Which one has the smallest capacity? Good! The small glass has the smallest capacity.

We can check by taking the smallest glass and pouring the water into the jar.

We can see that the jar is not full.

But the small glass is empty.

So therefore, this jar has the greatest capacity.

Now it's time for your talk task.

For this talk task, all I want you to do is have a look at the pictures and decide which container has a greater capacity, and which container has a smaller capacity.

So for example, I'll do the first one is usual.

So, it looks like the jar has a greater capacity than the bottle.

This means, that the bottle has a smaller capacity than the jar.

Your turn to do the next two.

Post the video now, when you're ready, resume and we can go over the answers.

Super! So again, the jug has a greater capacity than the bottle.

This means the bottle has a smaller capacity than the jug.

For number two, the jug has a greater capacity than the water bottle, this means the water bottle has a smaller capacity than the jug, it holds less.

For number three, the bottle has a greater capacity than the cup, this means the cup has a smaller capacity than the bottle.

Great job everyone.

Great! So, which do you think holds more water, the vase or the mug? Now make sure you tell me in a complete sentence, I think that hmm, holds more water.

Good! So, which do you think holds less water the vase or the mug? And again, make sure you tell me in a complete sentence.

I think that hmm holds less water.

Super! So, let's check.

We can fill the vase all the way.

So I think the vase holds more water.

One way I can check, is by filling the vase and pouring it into the mug.

Let's see, Okay.

I filled the mug, but, I still have water in my vase.

That means the vase, holds more than the mug.

What about, this little glass? Will this little glass hold more water or less water than the mug? What do you think? And make sure you tell me in a complete sentence.

I think the pudding cup will hold hmm, than the mug.

More water or less water.

Okay.

One way we can check, is by taking the water that's in the mug and pouring it into the glass.

We've made a mess.

I filled the little glass, but I still have lots of water in the mug.

That means, the little glass holds less than the mug.

Which container has the greatest capacity? I think, that the vase has the greatest capacity.

Which container has the smallest capacity? I think the small glass has the smallest capacity.

So, your turn tell me, which container has the greatest capacity? And make sure you use a complete sentence.

I think that hmm has the greatest capacity.

Good! Now tell me what you think has the smallest capacity? I think that hmm has the smallest capacity.

Now, we can see that because the glass, the small glass is smaller than the mug has less capacity than the mug, it must also have less capacity than the vase.

Similarly, because we know that the vase has a greater capacity than the mug, we must also know, that the vase has a greater capacity than the small glass cup.

So, it's already time for your independent task.

For this independent task, all I'd like for you to do, is fill in the blanks.

So let's have a look.

Hmm holds less water than C.

Okay.

Which of these containers holds less water than C? Is it A or B? Well, it's A.

I would just fill in A.

A holds less water than C.

But the rest of these make sure you read the statements and fill in the correct.

A B or C as long as it makes sense for the statement.

So pause the video now, resume when you're ready and see you when you're done for the answers.

Great job everyone.

So, for the second question, C or B holds more water than A, so you could have put B or C for that one.

For the third question, B holds the most water it has the greatest capacity.

A holds the least water you could see a teeny tiny in this container as compared to the other two.

B holds more water than C, and C holds less water than B If you'd like to, you can share your work with Oak National by asking your parents or carer to share your work on Instagram, Facebook, or Twitter, Tagging@OakNational and #LearnwithOak.

As always, don't forget to complete your final quiz.

Well done everyone and see you next time.