# String interpolation

## Learning objective
- Build readable dynamic strings with interpolation.

## Key syntax
```lucia
let name: string = "Ana";
let total: int = 5;
print("Hello ${name}, total: ${total}");
```

## Examples
- Interpolate variables, expressions, and method results.
- Combine interpolation with formatting logic.

## Common mistakes
- Forgetting `${...}` delimiters.
- Building long concatenations instead of interpolation.

## Suggested practice
- Generate report lines for a list of students using interpolation.

## Related
- operators-and-expressions
- methods-and-chaining
