MA07-06 Maths Coming soon
Limits of accuracy: upper and lower bounds
MA07-06
This lesson is coming soon.
In this lesson
Given a rounded or truncated measurement, calculate the bound needed to answer a specific real-world question, and draw a valid conclusion from it.
What it covers
- Identifying, from the wording of a real-world question, whether the upper or lower bound is the one that answers it
- Using the identified bound in a further calculation or comparison
- Writing a conclusion that engages with the context (e.g. 'so it is/is not enough')
Key words
For: AQA GCSE 8300, Edexcel GCSE 1MA1, Eduqas GCSE C300, OCR GCSE J560
On the specification
| Board | Spec | Statement |
|---|---|---|
| AQA GCSE 8300 | N16 | Apply and interpret limits of accuracy |
| Edexcel GCSE 1MA1 | N16 | Apply and interpret limits of accuracy |
| Eduqas GCSE C300 | FN16 | Apply and interpret limits of accuracy |
| Eduqas GCSE C300 | HN16 | Apply and interpret limits of accuracy, including upper and lower bounds |
| OCR GCSE J560 | 4.01c | Use inequality notation to write down an error interval for a number or measurement rounded or truncated to a given degree of accuracy. Apply and interpret limits of accuracy. |
For teachers
This GCSE Maths lesson teaches limits of accuracy: upper and lower bounds. By the end, students should be able to given a rounded or truncated measurement, calculate the bound needed to answer a specific real-world question, and draw a valid conclusion from it. It works through two worked examples and the mistakes examiners report.