What is the main purpose of a graph?
"- correctly identifying amounts from column graphs
- correctly identifying amounts from tables"
Graphs show how values change over time or compare different items. Look at the labels on the x and y axes to understand what the graph is showing. Know the key points of the graph, like highest and lowest values.
Graph: A graph is a visual representation of data that uses points, lines, bars, or other symbols to show the relationships between different pieces of information. Axes: The x-axis and y-axis of a graph are the two lines that intersect at a right angle and divide the graph into four sections. The x-axis is usually the horizontal axis and the y-axis is usually the vertical axis. Interpreting Graphs: Interpreting graphs requires the ability to recognize patterns, trends, and relationships between data points that are displayed on the graph. It also requires an understanding of the context in which the data was collected and what it represents.
Graphs are believed to be the oldest form of data visualisation, with the earliest known example dating back to 1857. Interpreting a graph can be much faster than reading a table of data. This is because the human eye can take in information much more quickly when presented in a visual way. A graph can provide detailed information to identify patterns and trends that would otherwise be difficult to spot in a large set of data.
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Work together in pairs: Q: Look at the table below. What is the total amount of apples sold in January?Month | Apples | Pears----------|---------|--------January | 6 | 8February | 4 | 5A: 6
What conclusions can you draw from the graph about the relationship between the number of hours of study and the test scores of students?
Work together in pairs: What is the most important thing to remember when interpreting graph data?
In a bar graph, what is the y-axis?
- The vertical axis showing the values being measured
- The horizontal axis showing the categories being compared
What type of graph would you use to show changes over time?
What does a scatter plot show?
- The relationship between two variables
- A comparison of different groups
What is the purpose of a legend in a graph?
- To explain what each color or symbol represents
- To show how many data points there are in total
In which type of graph can you easily compare parts to whole?
Brain break: Draw a giraffe stuck in a traffic jam with other animals and drivers honking around it.