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Hi there, welcome to your unit all about data.

My name is Ms. Hill and today we are going to be reading, interpreting and comparing pictograms. Before we begin, puts on your hats, tighten those ties, and tell the computer, now I'm a mathematician.

Great, let's get started.

For this lesson you're going to need the following resources; you will need a pencil, a piece of paper and a ruler.

If you need to go collect any of those things, pause the video now before we begin.

Great, let's get started.

Here is our lesson agenda for today.

We are going to look at a big picture, we then going to look at tally charts and frequency tables, and look at the difference between them.

We are then going to be looking at pictograms before comparing them, and then it'll be the end of lesson task.

Here we have our star words.

So we have our pictogram, this is one of the types of data collection we'll be looking at today.

We have a tally which we'll be looking at today, frequency table, and we're going to be comparing, we're going to be reading a scale, and we're going to be looking at data.

So these are our key vocabulary for this lesson.

Here is our big picture, and it's a postcard from New York.

Now I wonder what data we might want to collect from this postcard.

Hmm now I know when we go on holiday, we tend to send post cards.

So maybe this is linked to people going on holiday and tourists in the city.

This is Tim and Julie.

Tim and Julie are tour guides in New York, so it's important for them to know about the preferences of tourists in the city.

They've decided to collect some data, to inform their tours.

So they want to know what tourists want to see.

So that means that more tourists will go on their tours.

So here we have our tally chart, on the left hand side, we have all the different options, that the two tour guides ask the tourists on how they prefer to travel around New York.

We can see the options are bus, taxi, ferry, car, bicycle, and walking.

And beside each of these options are lines.

Now each of these lines are worth one.

So in the bus you can see there are two people that preferred it.

However when we look at taxi, that's a really funny one.

There's four lines and one going across.

Now, this is a really quick way, cause this shows, there are five people.

So to read quickly I'd say ooh five add one six.

Therefore six people like the taxi.

For the ferry, you see there's five, and then add on three, eight.

And so I'm actually going down the tally chart.

Now on the frequency table, which is on the right hand side, you can see it has the mode of transport, so the options which are the same: bus, taxi ferry, car, bicycle and walking.

And it also has the number of people.

So if we know, if we look at the bus, that two people like travelling by bus.

For the taxi we can see it's six, for the ferry, we can see it's eight, for the car, zero.

The bicycle there's three, and for walking, there are eight.

However, on a frequency table, we also include the total of people asked.

So we now need to add up all of these people and write in the total box 27.

Now here we have our tally chart, and we all say have a pictogram.

Now we need to work out, what one of these little pictures represents.

Let's have a look at the bus.

Now I can see that, my tally chart, two people like the bus, and there's a whole picture of the bus.

So that must mean one of the outer squares represents two.

But let's double check that with taxis.

So for taxi, I can see there are one, two, three full squares.

And if each square represents two, then there should be six people there.

Let's double check the taxi, six.

Lets have a look at bicycle, because in bicycle there's half, I wonder what that half could represent.

Let's have a look, at my tally chart my bicycles, there's three people.

So I can see there's one full one, which represents two, oh so that half must represent one.

The next question Tim and Julie asked was, "What is your favourite attraction in New York?" However, for this question, they wanted to know the difference between children's and adults answers.

And we can see the options are for Central Park, Times Square, The Chrysler Building, The Statue of Liberty, Brooklyn Bridge and Empire State Building.

Now between these two tally charts, I can see, that children, more children prefer to go to Times Square than adults.

Hmm, unless adults prefer to go to the Brooklyn Bridge than the children.

Now for each of these pictograms that we can see there are squares, and each little square, is representative of four.

So if we look at The Chrysler Building, we can see there are four little floors, and four times four is equal to 16.

Therefore I can see that 16 children, like to go to The Chrysler Building.

Let's have a look at Central Park.

How many people in total like Central Park? So let's count how many boxes there are.

Four, eight, 12, 13, 14, 15, 16, 17, 18, 19 20, 21, 22, 23, 24, 25, 26, 27, 28, 29.

So there are 29 boxes, and if each one represents four, wow.

If I know that two times four is equal to eight, then I know that 20 times four is equal to 80.

And I know that nine times four is equal to 36, and 80 and 36 is equal to 106.

So 106 people like Central Park.

For your independent task today, you're going to be answering questions using these two pictograms. And here are the questions.

You can see there are 10 questions, so you need to carefully read the questions and use the pictograms to help you answer them.

Don't forget to pause the video.

Great job everybody, let's go through the answers together.

Question one, four more children said Central Park was their favourite attraction, tick and fix.

Question two, 92 adults and children said their favourite attraction was the Empire State Building.

Question three, The Statue of Liberty was the most popular attraction for children.

Question four, Times Square was the least popular attraction for adults.

Question five, Central Park was more popular because 116 people preferred it and only 92 people liked The Empire State Building.

Question six, I would choose The Statue of Liberty and Central Park because they are the most popular.

Question seven, 48 adults' favourite attraction was the Chrysler building or Brooklyn Bridge.

Question eight, The Statue of Liberty was the most popular overall.

Question nine, The Chrysler building was twice as popular for adults than it was the children.

And question 10, they should include Central Park rather than the Brooklyn Bridge.

Great job today everybody, you have been super duper.

Please make sure you give yourselves a big ♪ One, two, three, well done me.

♪ Nice job.

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

Hope to see you again soon, bye.