Grade 6 · Algebra · Coding and Mathematical Models
Plan, Test, and Refine a Model
Coding gives precise instructions; modelling checks whether a mathematical representation still makes sense in the real situation.
The big idea
A solution improves through testing
A program can use an if/else condition to choose a transit fare, while a model checks whether its assumptions match actual riders and costs.
Work it through
Model a fare rule
- 1. Define the input, such as a rider's age.
- 2. Write a condition: if age is 12 or under, use the child fare; otherwise use the regular fare.
- 3. Test boundary values such as 12 and 13.
- 4. Compare results with the real policy and revise incomplete assumptions.