Lesson video

Hi, everyone.

My name is Mrs. Jenkins.

Welcome to today's lesson, Using Numbers for Pet Data, taken from the unit Perfect Pets.

Let's get started.

In today's lesson, our learning outcome is, I can use numbers to rate pet attributes.

We have three key words in our lesson today.

These words will appear throughout the lesson, so it's really important we know what they mean before we get started.

Those three words are, value, rating, and measure.

Value is a number given to show something.

Rating is a number that shows how good or strong something is.

And measure is to find out how much of something there is.

Okay.

So look out for those three words in today's lesson.

They are value, rating, and measure.

In our lesson today, Using Numbers for Pet Data, we have two learning cycles.

Recognize when numbers are useful, and use numbers to show differences.

Let's get started with learning cycle one, recognize when numbers are useful.

Numbers are used when something can be counted or measured, for example, the age, number of legs, or height in centimeters.

So for the age, we've got eight.

The number of legs, we've got two.

And for the height in centimeters, we have got 20.

All of these are things that can be counted or measured.

When numbers are used to measure, they show how much of something there is.

So for our bird, we can see they are 20 centimeters tall, and they weigh 200 grams.

Both of these are things that can be measured.

Let's have a little check-in.

Which attribute would you show using a number?

A, color, B, height, or C, birthday.

What do you think?

Have a go.

How did you get on?

I asked, which attribute would you show using a number?

A, color, B, height, or C, birthday.

The answer is B, height.

Height is an attribute that you would show using a number.

Great job, everyone.

When something is measured, you give it a number.

So our bird has been weighed, and the number is 200 grams.

That number is called a value.

So 200 grams is a value.

A larger value means there is more of that thing.

So Andeep says, "That pet weighs 200 grams.

" Jacob says, "This pet weighs 500 grams.

" So that means the pet that weighs 500 grams is heavier, there is more of it.

Let's have a little check-in.

True or false?

Numbers are only used to count how many things there are.

What do you think?

Have a go.

How did you get on?

I asked you, true or false, numbers are only used to count how many things there are?

The answer is false, and the reason why: You can also use numbers to measure how much or how big something is.

Great job, everyone.

Okay.

We're going to move on to task A now.

I would like you to look at these attributes, height, color, strength, and speed.

We're going to answer, which attributes would you show using numbers?

Which attributes would you not measure?

Explain why.

Have a go.

How did you get on?

I asked you to look at these attributes, height, color, strength, and speed.

I asked you to think which attributes would you show using numbers, which would you not measure, and explain why.

Andeep has answered, "Height, strength, and speed can be measured.

Numbers are useful when you need to show how much of something there is.

" That's right, Andeep, well done.

And Jacob explains, "Color describes what something looks like, so you cannot measure it.

" That's right, Jacob.

Thank you.

Great job, everyone.

We are going to move on to learning cycle two now, which is, use numbers to show differences.

Sometimes numbers are used to give something a rating.

So we have Toffee here, and it says, underneath Toffee, we've got some information.

We have color, white and brown, strength one, speed four, and energy five.

A rating is a measurement to show how good or strong something is.

Let's have a little check-in.

Which statement is correct?

A, a rating is a word used to describe something.

B, a rating is a color.

Or C, a rating is a number used to show something.

Have a go.

How did you get on?

I asked you, which statement is correct?

A, a rating is a word used to describe something.

B, a rating is a color.

Or C, a rating is a number used to show something.

The answer is C, a rating is a number used to show something.

Great job, everyone.

When people rate something, they have to use a scale to give it meaning.

For example, strength may be rated from one to five.

So here we've got our one at the beginning and five at the end.

So when we're deciding how strong something is, we will give it a rating between one and five.

When something is rated on a scale, it is given a value.

So here we've got two animals, one on one, and one on four.

Ratings help show differences, and allow people to compare things.

So Sam says, "Sunny is stronger than Toffee.

" That's right.

Sunny has been given a rating of four for strength, while Toffee has only been given a rating of one.

Great job, Sam.

Let's have a little check-in.

True or false?

A rating helps us see differences between pets.

What do you think?

Have a go.

How did you get on?

I asked you, true or false, a rating helps us see differences between pets?

The answer is true.

The reason why: The value shows how much of an attribute there is so you can compare the pets.

Great job, everyone.

A larger value shows more of that attribute, but a larger value does not always mean better.

Here, a lower value is better because it means less noise.

So for our scale, we've got noise, and one is less noise, and five is more noise.

We've got one pet on two for noise and one on four.

Laura says, "Oh, I want a quiet pet.

" Okay.

We're going to move on to task B now.

I would like you to choose a value between one and five for each attribute using the description for each pet.

So our attribute for strength for Patch is very strong, and Puddle, not very strong.

Noise.

Patch is very loud, and Puddle a little loud.

For speed, Patch is fast, and Puddle a little fast.

Explain how your values show the difference.

Have a go.

How did you get on?

I asked you to choose a value between one and five for each attribute using the description for each pet.

So for strength, we've got, Patch is very strong, Puddle, not very strong.

For noise, Patch is very loud, Puddle is a little loud.

For speed, Patch is fast, and Puddle, a little fast.

And then I've asked you to explain how your values show the difference.

So we've got here, strength, Patch five, Puddle one.

Noise, Patch five, Puddle two.

Speed, Patch four, Puddle two.

And Jacob says, "Patch is faster than Puddle because the higher value shows more speed.

" That's right.

Well done, Jacob, and well done, everyone.

You have worked really hard today.

Let's summarize what we have learned.

People use numbers to measure how much of something there is.

A value is the number given to show the amount.

A rating uses a value to show how good or strong something is.

Ratings help people see differences, but a larger value does not always mean better.

Well done, everyone.

You have worked so hard today.

I can't wait to learn with you again soon.