Lesson video

Hi there.

Today we are going to be reading, interpreting and comparing different bar charts.

So, I hope you're ready for this lesson.

Put on your hats, tighten those ties, and tell the computer, now I'm a mathematician.

Great job.

Let's get started.

For this lesson, you will need the following, a pencil, a piece of paper and a ruler.

Please make sure you have all of those things in front of you.

And if not, please pause the video now and go collect them.

Super, here is our lesson agenda for today.

We are going to be looking at some star words.

moving on to bar charts, reading data, and then your end of lesson task.

So here are star words.

Today we're going to be looking at bar charts, our tally charts and frequency tables.

We're going to be comparing data, reading scales, looking at data, having a look at axis, looking at the horizontal axis, and the vertical axis as well.

What can you tell me about this line? Well, you can't really tell me much apart from that it's a straight line.

But this actually represents our horizontal axis on our bar chart.

And this one, is our vertical.

So here we have our axis.

You have our horizontal, and our vertical axis for our bar chart.

And here, we have a bar.

And this bar could represent anything.

It could represent any amounts of people, who have picked a certain option.

And having a look at these two bars, one is much greater than the other.

I wonder what they could represent.

Tim and Julie are looking at the data about tourists' favourite attractions in New York.

They decided that to make their data more accurate, they want to include more people.

So decide to ask 150 adults and 150 children.

And here we have two frequency tables, which shows the number of children, and the number of adults' favourite New York attraction.

The attractions are listed on the left of each table.

We have the Brooklyn Bridge, the Chrysler Building, Central Park, the Empire State Building, the Statue of Liberty, and Times Square.

And we have a total of people asked at the bottom as well.

From this frequency table, we can see for example, that's 30 adults like the Statue of Liberty, whereas 41 children like the Statue of Liberty.

Times Square, nine children liked it, but only seven adults liked it.

And we have Central Park, about 14 children like Central Park, and 18 adults like Central Park.

And here we have our bar charts.

But, what's missing? These aren't very helpful at all, are they? They're missing titles, they're missing labels.

How do we know which is which? So here we have our bar chart that represents the number of adults that liked certain attractions.

We can see for example, our scale is going up in 10s.

And we have one, two, three, four, five lines each scale.

So each box can be representative of two.

So let's have a look at this one.

So we can see one, two, three, four, five, 10.

12, 14, 16, 18.

So this one is 18.

Can you see any New York attractions 18 adults like them? Can you point to it for me? Super job.

This one is Central Park.

How about this one? If we know that each little box is worth two, we can count quickly in twos.

Two, four, six, oh, this is half a box, and half of two is equal to one.

So this is seven.

Can you see any New York attractions with seven? Oh, super job it's Times Square.

What would be making this bar chart even better is having labels and having a title.

Let's continue.

So here we have our bar chart for children.

Let's have a look at this one here.

This one is definitely the tallest of all and I can see that it's over 40.

And it's half a bar so it's 41.

Can you see any New York attractions which are 41? Oh, well done.

Of course it's the Statue of Liberty.

How about this one all the way down here.

Two, four, six, eight.

Eight add one is equal to nine.

Can you see any that are worth nine? Oh, well done, of course it's Times Square.

But again, they need to have labels, the horizontal axis and a title would be great too.

For your task today, you're going to be answering these questions and comparing the two bar charts.

So pause the video and use the bar charts, to help you answer these questions.

Great job everybody.

Let's go through these answers together.

Question one, four more adults and children said that Central Park was their favourite attraction.

Question two, 16 people prefer Times Square.

Question three, now I've added the numbers here so Empire State Building was 82 people, the Statue of Liberty is 71 people, and the Chrysler Building was 54 people.

Question four, the Statue of Liberty was more popular for children.

Question five, Times Square with nine people.

Question six, Empire State Building was more popular, 82 people, and again number seven, 82 people for Empire State Building.

Question eight, the Statue of Liberty and Brooklyn Bridge would have been more popular, as 63 people prefer these places, than the Empire State Building and Central Park with only 53 people.

Great job today everyone.

Give yourself a big pat on the back cause that was lots and lots of work.

If you'd like to, please ask your parents or carer to share your work on Twitter, tagging @OakNational and #LearnwithOak.

I've had real fun today , so hopefully I will see you again soon.

Bye.