> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xkat.space/llms.txt
> Use this file to discover all available pages before exploring further.

# The Lesson Player

> Navigate interactive lessons and playback controls.

The **lesson player** is where you actually take a lesson. Unlike a video player,
it presents interactive content alongside the [Dynamic
Workspace](/en/learn/workspace/overview), so reading and doing happen together.

## Navigating a lesson

* **Step through** the lesson content at your own pace.
* **Practice inline** — exercises open the workspace right where you need them.
* **Move between lessons** in a course using the navigation controls.

## The interactive panel

Because content is interactive rather than a fixed recording, the player can adapt
what it shows — code, terminal, preview, or explanation — to the moment in the
lesson. This is the same context-aware behavior described in the
[workspace overview](/en/learn/workspace/overview).

## Your place is saved

Progress is tracked automatically (see [Progress & Library](/en/learn/progress-library)),
so you can leave and resume any time.

## Related

<CardGroup cols={2}>
  <Card title="AI Tutor" icon="robot" href="/en/learn/ai-tutor">
    Get help without leaving the lesson.
  </Card>

  <Card title="Playground" icon="flask" href="/en/learn/playground">
    Experiment freely outside a course.
  </Card>
</CardGroup>