Pupils draw and interpret line graphs to calculate currency conversions and compound interest.
Scenario
In order to calculate how much various currency conversions will leave them with, pupils are considering exchange rates and bank fees. Pupils also use exponential graphs to explore the concept of compounding.
Curriculum references
| National Curriculum 14 | 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. |
| OCR 7.04b & 7.04c | Understand the relationship between gradient and ratio. Interpret straight line gradients as rates of change. Eg Gradient of a distance-time graph as a velocity. Calculate or estimate gradients of graphs, and interpret in contexts such as distance-time graphs, velocity-time graphs and financial graphs. Apply the concepts of average and instantaneous rate of change (gradients of chords or tangents) in numerical, algebraic and graphical contexts. |
| OCR 7.04a |
Construct and interpret graphs in real-world contexts. Eg distance-time money conversion temperature conversion. Recognise and interpret graphs that illustrate direct and inverse proportion. |
| AQA 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. including reciprocal graphs. including exponential graphs. |
| Edexcel A14 | 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. |