Lesson video

Hello everyone.

My name is Mrs. Jenkins.

Welcome to today's lesson, which is comparing pet data, taken from the unit "Perfect Pets.

" Let's get started.

In today's lesson, our learning outcome is I can compare and group pets using their data.

In today's lesson, we have three key words.

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

We have same, group, and category.

Same is exactly alike in one way.

Group is putting things together that are the same in some way.

And category is a name for a group of things that are the same.

Okay, so those three words, same, group, and category.

Keep an eye out for them as we move through the lesson.

In today's lesson, "Comparing Pet Data," we have two learning cycles.

We have compare pets using attributes, and group pets in different ways.

We're going to begin with compare pets using attributes.

Pet cards show data about pets.

People can use the data on the cards to compare pets.

So we have here, Patch and Buddy.

Patch's color is black and white.

His height is 40 centimeters.

His strength is three Speed is four.

His noise is two.

Buddy, his color is brown and white.

His height is 40 centimeters.

His strength is two, speed three, and noise four.

Jacob says, "Both pets are 40 centimeters tall.

" That's right, Jacob, thank you.

To compare pets fairly, the same attribute must be used.

For example, compare strength with strength.

So our dog here has the strength of four, where our cat is the strength three.

Okay, let's have a little check in here.

Which comparison is fair?

A, strength and speed.

B, speed and speed.

Or C, height and color.

What do you think?

Have a go.

How did you get on?

I asked which comparison is fair?

A, strength and speed.

B, speed and speed.

Or C, height and color.

The answer is speed and speed.

Comparing like with like, so speed and speed is a fair comparison.

Great job.

Okay, you are now going to create your own pet card.

You are going to give your pet a name, give sensible ratings for the attributes and height, and color your pet, and add the color to your card.

So here's an example card which has a picture of a dog.

It has space for a name underneath.

It has color, height in centimeters, strength from one to five, speed from one to five, noise from one to five, and softness from one to five.

So you are going to have a little go now at creating your pet card.

Okay, now is a good time to pause the video while everyone creates their pet card.

Numbers make comparisons clearer.

A larger value shows more of that attribute, but does not necessarily mean it's better.

This is why the same data can be used in different ways.

So here we have our dog, and his noise level is seven, whereas the cat's noise level is four.

While the noise level might be greater for the dog, that might not be something you're looking for.

You might not want a noisy pet.

Let's have another check here.

We have Pet A whose strength is three.

Pet B, strength is five.

Which statement compares the pets correctly?

A, Pet A is stronger than Pet B.

B, Pet A is louder than Pet B.

Or C, Pet B is stronger than Pet A.

What do you think?

Have a go.

How did you get on?

I said Pet A has a strength of three.

Pet B has a strength of five.

Which statement compares the pets correctly?

A, Pet A is stronger than B.

B, Pet A is louder than Pet B.

Or C, Pet B is stronger than Pet A.

The answer is C.

Pet B is stronger than Pet A, because the strength is five, which is larger than the strength of three.

Great job, everyone.

We are going to move on to task A now.

You are going to choose one attribute from your pet card.

Compare your pet with another pet card on your table.

Write one comparison sentence.

So my pet is mm than mm because.

Have a go.

How did you get on?

I asked you to choose one attribute from your pet card, compare your pet with another pet card on your table and write one comparison sentence.

Comparison is fair when the same attribute is used.

So Sophia says, "My pet is stronger than Jun's pet because it has a strength rating of seven and Jun's has four.

" Jun says, "My pet is taller than Sophia's pet because it is 45 centimeters tall, and Sophia's pet is 38 centimeters tall.

" Well done both of you and well done all of you.

Great job.

We're going to move on to learning cycle two now.

Group pets in different ways.

When you compare pets, you can also look at which ones share the same value.

So here, we have a dog and a cat, and both of them have the speed of five.

Putting things together that share the same value means you are grouping them.

Pets can be grouped using attributes.

For example, you could group them if they have the same strength ratings.

So both the dog and the cat both have a strength rating of four.

So they are in a group together.

Or you could group them if they had the same heights.

So we've got two dogs and a cat now, and all of them have the height of 25 centimeters.

Let's have a little check.

Pets A and C both have a strength rating of five.

If the pets are grouped by strength, which statement is correct?

A, they are not the same and belong in separate groups.

B, they are the same and belong in the same group.

C, they cannot be grouped using strength.

What do you think?

Have a go.

How did you get on?

I asked pets A and C both have a strength rating of five.

If the pets are grouped by strength, which statement is correct?

A, they are not the same and belong in separate groups.

B, they are the same and belong in the same group.

Or C, they cannot be grouped using strength.

The answer is they're the same, and they belong in the same group.

Great job.

Each group is called a category.

The category is what the pets have been grouped by.

So our category here would be the height being 25 centimeters.

Let's have a little check.

True or false?

Pets that share the same value in the same category can be grouped together.

What do you think?

Have a go.

How did you get on?

I asked true or false?

Pets that share the same value in the same category can be grouped together.

The answer is true.

The reason why, they have the same value, so they belong in the same category.

Each time you group pets into a different category, the groups may change.

For example, if you group by softness, the pets may be grouped differently to grouping by strength.

So here we can see some of our pets.

And in the first section, we've got softness.

So we have three animals that the softness level is three and three animals whose softness level is five.

But when we look at grouping them by strength, the animals have all moved around.

So they have different strengths to their softness levels.

We're going to move on to task B.

Using your table's pets cards.

Group the pets by strength.

Group the pets by softness.

Explain how the groups have changed.

What other attribute could be used to create a new category?

And Alex has given us a sample sentence here.

When grouped by hmm, these pets go together because.

Have a go.

How did you get on?

I asked you to, using your table's pet cards, group the pets by strength.

Group the pets by softness.

Explain how the groups have changed and what other attributes could be used to create a new category.

And Alex gave us an example sentence of when grouped by hmm, these pets go together because.

The same data can be grouped in different ways.

When grouped by strength, Pets A and C go together, because they both have a rating of five.

When grouped by noise, different pets go together, because they have the same noise value.

Thank you, Alex.

Great job.

Well done.

You have worked so hard in today's lesson.

Let's summarize what we have learned.

Pets can be compared using the same attribute.

Pets that have the same value for the same attribute can be grouped together.

A category is the name given to a specific group.

The same data can be grouped in different ways.

Well done everyone.

You've worked really hard today.

I hope to learn with you again soon.