4. Control Structures and Validation
This section focuses on making programs behave correctly when users provide input.
Combines
- sequence
- selection
- iteration or repetition
- existence checking
- type checking
- range checking
Why these belong together
Once students are handling input and decision-making, validation becomes a natural extension of control structures rather than a separate theory-only topic.
Good folio-style tasks
- build a login or menu-driven program
- create a loop that keeps asking for valid input
- validate ages, scores or menu choices
- compare different validation checks and explain why each is needed
Key skills supported
- develop a software solution using control structures
- design and apply suitable validation techniques