Year 10 - Maths
Interpreting time series graphs
Graphical representations of data: scatter graphs and time series
Study Hub
Study Guides
This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will learn how to interpret and extract data from scatter graphs and time series graphs.
Lesson Summary
You will learn to interpret time series graphs, including commenting on trends.
Key Notes
- The graph can be used to estimate a frequency at a given time
- Time series graphs can help us spot underlying trends or systematic patterns
- These trends can be interpreted in context and the context may explain the pattern seen
Vocabulary To Learn
- Time series graphs: Time series graphs show data over a time period. The time period is always shown on the x-axis. Data points are joined chronologically by line segments.
Common Mistakes To Avoid
- Pupils may place too much confidence in the accuracy of predictions based on extrapolating time series graphs into the future.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
The graph can be used to estimate a frequency at a given time. Time series graphs can help us spot underlying trends or systematic patterns.
2. Use this key word in a maths sentence and explain it clearly. 'Time series graphs'
Time series graphs show data over a time period. The time period is always shown on the x-axis. Data points are joined chronologically by line segments. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils may place too much confidence in the accuracy of predictions based on extrapolating time series graphs into the future. Correction: While extrapolating a time series graph provide an indication of what future results may be, predictions are not guaranteed. Context should also be considered in these cases (e.g. whether there is a natural limit to how high a variable may reach).
More Lessons In This Unit
- Checking understanding of correlation Study Guide
- Checking understanding of scatter graphs Study Guide
- Constructing time series graphs Study Guide
- Estimating from scatter graphs Study Guide
- Interpolation versus extrapolation Study Guide
- Outliers in scatter graphs Study Guide
- Problem solving with scatter graphs and time series Study Guide
Browse all guides in the Year 10 Maths guide library.