Year 9 - Maths
Studying climate change
Maths and the environment
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
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Lesson Summary
You will learn to understand how Earth's polar ice caps are changing.
Key Notes
- By analysing how the northern polar ice caps have changed, predictions can be made
- By analysing how the southern polar ice caps have changed, predictions can be made
Vocabulary To Learn
- Forecast: A forecast is a prediction of a future event occurring (based on data).
- Extrapolation: Extrapolation is the process of estimating unknown values that are outside the range of existing data.
Common Mistakes To Avoid
- When comparing the modal class for two datasets, pupils may think that the dataset with the greatest modal class is the one which has the greatest frequency for its modal class
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
By analysing how the northern polar ice caps have changed, predictions can be made. By analysing how the southern polar ice caps have changed, predictions can be made.
2. Use this key word in a maths sentence and explain it clearly. 'Forecast'
A forecast is a prediction of a future event occurring (based on data). Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: When comparing the modal class for two datasets, pupils may think that the dataset with the greatest modal class is the one which has the greatest frequency for its modal class. Correction: Use the frequency to identify the modal class for each dataset, but then compare the values within each class to determine which dataset has the greatest modal class.
More Lessons In This Unit
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