Strategy
- Understand the problem (inputs, outputs, constraints).
- Plan a solution (formulas, steps).
- Execute and check (does it make sense?).
Illustration
Placeholder: flowchart for problem-solving steps.
Practice
- “If a taxi costs $3 base + $2/km, what is cost for 7 km?”
- “Add numbers 1..n quickly.” (hint: n(n+1)/2)