---
title: "addProgressRange(fromStart:toEnd:)"
framework: classkit
role: symbol
role_heading: Instance Method
path: "classkit/clsactivity/addprogressrange(fromstart:toend:)"
---

# addProgressRange(fromStart:toEnd:)

Adds a progress range to a given activity.

## Declaration

```swift
func addProgressRange(fromStart start: Double, toEnd end: Double)
```

## Parameters

- `start`: The beginning of the new range to add. This should be fractional value between 0 and 1, inclusive.
- `end`: The end of the new range to add. This should be larger than the start value and less than or equal to one.

## Mentioned in

Recording student progress

## See Also

### Measuring progress

- [progress](classkit/clsactivity/progress.md)