MA17-02 Maths Coming soon
Interpreting Non-Standard and Exponential Real-World Graphs
MA17-02
This lesson is coming soon.
In this lesson
Read an approximate value off a real-world exponential or non-standard graph and correctly describe whether the quantity is growing or decaying.
What it covers
- Recognising a real-world context graph as exponential growth (gets steeper) or exponential decay (flattens, approaches but never reaches zero)
- Reading an approximate value off a given exponential-shaped real-world graph at a stated input (e.g. 'find the value of the car after 4 years' from a depreciation graph)
- Interpreting what growth/decay means in the specific context given (population, radioactivity, investment value, temperature cooling)
- Other clearly non-standard (non-linear, non-quadratic) real-world graph shapes presented for read-off, where the shape itself is given rather than derived
Key words
For: AQA GCSE 8300, Edexcel GCSE 1MA1, Eduqas GCSE C300, Cambridge IGCSE 0580
On the specification
| Board | Spec | Statement |
|---|---|---|
| AQA GCSE 8300 | A14 | Plot and interpret graphs, and graphs of non-standard functions in real contexts, to find approximate solutions to problems such as simple kinematic problems involving distance, speed and acceleration |
| Edexcel GCSE 1MA1 | A14 | Plot and interpret graphs (including reciprocal graphs) and graphs of non-standard functions in real contexts to find approximate solutions to problems such as simple kinematic problems involving distance, speed and acceleration |
| Eduqas GCSE C300 | HA14 | Plot and interpret graphs (including reciprocal graphs and exponential graphs) and graphs of non-standard functions in real contexts, to find approximate solutions to problems such as simple kinematic problems involving distance, speed and acceleration |
| Cambridge IGCSE 0580 | E2.10 | Graphs of functions |
For teachers
This GCSE Maths lesson teaches interpreting non-standard and exponential real-world graphs. By the end, students should be able to read an approximate value off a real-world exponential or non-standard graph and correctly describe whether the quantity is growing or decaying. It works through one worked example and the mistakes examiners report.