This task allows students to explore the difference between linear and exponential sequences and their sums.
Algebra and Graphs, Financial Maths
Calculating profit and loss, using a spreadsheet to model simple financial contexts.
This task is suitable for small group discussion and modelling using a spreadsheet. Given the need to ‘reply to a letter’ there is a purpose and audience for the work which can be motivating.
The resource is on the following sheet but can be freely downloaded from the STEM e-library.
Students will need spreadsheets to model the different approaches proposed by the Rich Aunt and inform their decision-making.
Students could make up their own scenario where the outcomes are not immediately obvious.
From SMILE spreadsheet resources available at https://www.stem.org.uk/elibrary/resource/31135