Comparing Scaled Bar Graphs and Picture Graphs
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Basics on the topic Comparing Scaled Bar Graphs and Picture Graphs
Learn about scaled bar graphs and picture graphs with this video.
Transcript Comparing Scaled Bar Graphs and Picture Graphs
“BOOOO!” “What do you think?" “Not scary.” I’ve been researching scary monsters from our old movie collection.” “Let’s take a survey to see which ones seem to be the scariest.” " "We’ll collect the data, create graphs, compare the results, and then choose our costumes." We can help Nari and Gus understand how data can be organized and select their Halloween costumes by “Comparing Scaled Bar Graphs and Picture Graphs.” A survey is a method of collecting data by asking people questions. A data set is created from the results of a survey. The data set will tell us how many answered for each survey category. We can create a scaled graph of the data to make it easier to understand the results and answer questions about the information. One type of graph is called a scaled bar graph. Here, the survey results are shown as long bars that represent the number of times a response was recorded. This scaled bar graph shows Nari's data from his scariest monster costume survey. In this bar graph, the categories are shown horizontally and show the types of monsters surveyed. On the left-hand side of the graph is a vertical number line. Since there were a lot of survey responses, it is easier to group the line by fives. This is what makes it a scaled graph. Looking at this bar graph, we can easily see that the Dracula has the most number of votes and mummies has the least. Gus made a different type of graph with the results, called a scaled picture graph. We can share the exact same data in this type of graph, too. Let’s compare and contrast how the survey results are shown here to the previous graph. Does this graph have a title? Yes, this graph has the same title because we are sharing or displaying the same information. Does the scaled picture graph show the costume categories? (...) Yes, this graph also shows the different types of costumes from the survey. Does this graph show the amount of votes each costume received? Yes, we can see the vote totals next to each category, and the votes are grouped by fives and tens on this graph. Can we identify the scariest and least scariest costumes? Yes, like the bar graph, this also makes the information easier to understand and answer questions about the data. So, what is different about the way this graph organizes the information? A scaled picture graph uses pictures to represent more than one unit, and there is a key next to the graph that tells us how many units are represented by each picture. A scaled picture graph does not have a number line. This scaled picture graph is organized horizontally, and the scaled bar graph is organized vertically. In the comment section, share other similarities and differences you observe between the scaled bar graph and the scaled picture graph. While Nari and Gus get ready to go trick or treating, let's review. Remember... a survey is a method of collecting data by asking people questions. We can create a scaled graph of the data to make it easier to understand the results and answer questions about the information. One type of graph is called a scaled bar graph. Another type of graph is called a scaled picture graph. These graphs share the same information but organize them in different ways. "Nari, you look so scary!" "I bet everyone thinks you're the REAL Dracula!" "Good evening." "Awww, don't you two look so cute."