Look at the block diagram and answer these 'true or false' questions.

True or false: Mustard is the most popular condiment.

True or false: Hot sauce was the least popular condiment.

True or false: From this block diagram I can see Miss Mitchell's favourite condiment is mayonnaise.

Representing data in a tally chart and block diagram

﻿Hi, everyone, it's Miss. Mitchell. I hope you're well. Today in Math, we're going to be interpreting data from scout pictograms, and block diagrams. In today's lesson, we'll be looking at block diagrams and pictograms. You will be completing an independent task, and then a quiz. For today's lesson, you will need a pencil and some paper. Pause the video now to get this if you have not got it already. Here is a block diagram. And here is a pictogram. They both show the number of people that visited that country. What scale is used on this block diagram? What does each block represent? That's right. Each block represents five people, as it says it down here. This diagram shows me what country was the most visited. Which was Germany. Because it has the most amount of blocks. Which country was the least visited country? And how do you know? China and Australia were the least visited countries because it has the fewest number of blocks. They both have two blocks. Over here is the pictogram. What's the same, and what's different to the block diagram? Both graphs are showing the same data, but this pictogram has a scale of 10 people. So each circle represents 10, whereas each block represents five, even though they're showing the same information. This graph also shows you that Germany is the most visited country. Because it has the most amount of blocks. And just like this graph, it shows you that China and Australia were the least visited countries because it has the fewest number of blocks. Here is a question. Which is the hottest country? Now can you answer that from this diagram? Can you tell the answer? You cannot answer this question, because the diagram on here, nowhere says about temperature. It only shows the number of people visited. So this question cannot be answered from either of these graphs. And these graphs show the same information. Here's another one. What is the closest country to Britain? Now do either of these graphs show this information? No, because again, neither of these graphs show the location of where these countries are. Britain isn't even on the graph. At no point in either of these graphs, does it talk about distance? So this question cannot be answered by this graph. Because up here shows the number of people, down here shows the countries, and nowhere does it say closest to Britain. Here's a new question. How many people visited China and Australia? Can this be answered by looking at the graph? Yes, it can. This graph shows the number of people that visited a country, and both China and Australia are on here. Both of these graphs show that 10 people visited Australia, because each block represents five, five, ten. Five, ten. And this graph over here also shows that 10 people visited Australia, because each circle starts at 10. So 10, 10. Now the question is asking me, "How many visited China and Australia?" So we need to add the two parts together to make the whole. So if 10 people visited China, and 10 people visited Australia, the total number, from adding them together, 10 plus 10 is equal to 20. So how many people visited China and Australia? Yes, that can be answered. The answer is 20. And again, we can just show this 10 because you go up, even though each block stands for five, you can go across to your Y axis, and it's exactly on top. How many people were asked all together? So this is a new question. Can this be answered by looking at the graph? I'm just going to give you a moment to look. Yes, this can be answered by looking at the graph. How do we work out the answer? So, each circle represents 10 people. So we can count up in tens. 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110 people. So yes, that can be answered. How many people were asked all together? And the answer would be 110 people were asked. Here's a final question. Which state in America did people visit? Now have a little think and have a little look at the graphs. America is on the graph. Does it tell you which state in America did people visit? Nope, the graph does not show you this information. It does mention America, but it doesn't mention any particular American states. It's just talking about America as a country. So does this graph, answer this question? No, it does not. Here is a different pictogram. This pictogram shows people's favourite planets, or the planet they'd most like to visit. Just like we did, could you read these questions on this side here? And decide whether or not it can be answered from the graph. Put a tick or a smiley face next to the ones that can be answered, and put across next the ones that can't be answered. For an extra chart style challenge, why not answer the questions that have ticks by looking at the pictogram? Pause the video now and press play when you are ready for the answers. And here are the answers. Pause the video now to mark your work. If you would like to share your work with oak national, please ask your parent or carer to share your work on Twitter, tagging @OakNational and #LearnwithOak. Well done for today's work. You worked really, really hard. Now let's see what you can remember by completing the quiz on the next page. Well done, bye.

Look at the pictogram to see whether the questions are true or false.

True or false: 4 people visited Germany.

True or false: The same amount of people visited China  and Australia.

True or false: 20 people visited France.

Interpreting data from scaled pictograms and block diagrams

In this lesson, we will compare block diagrams and pictograms and interpret data from them.

Lesson overview:Interpreting data from scaled pictograms and block diagrams

Core Content

Graphs: