> For the complete documentation index, see [llms.txt](https://docs.siminsights.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.siminsights.com/learn/the-lesson-player.md).

# The lesson player

The activity types in a lesson, how answers are saved, and what retaking does.

A lesson is a sequence of activities, shown one at a time, with the list down the left so you can see where you are. Activities marked **Optional** can be skipped.

| Activity      | What you do                                                                       |
| ------------- | --------------------------------------------------------------------------------- |
| Reading       | Read the text and press **Next**.                                                 |
| Quiz          | Answer one question at a time. **Submit** checks each answer before you move on.  |
| Open response | Type your answer and press **Submit**.                                            |
| Flash cards   | Tap a card to flip it. Work through the set and press **Finish**.                 |
| Simulation    | The simulation opens inside the lesson. Choose how to play, then complete it.     |
| Spark         | A conversation with an AI character opens inside the lesson. See Playing a Spark. |
| Results       | Your score for the lesson.                                                        |

<figure><img src="https://2704613365-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FxYaaXoZ4YGbVdAnAhdcE%2Fuploads%2F4HAbdRMvFazxYXNXiO7a%2Fimage.png?alt=media&#x26;token=5b77615d-6540-4d32-94cc-f5be54c3cca1" alt=""><figcaption></figcaption></figure>

## Getting through it

The button at the bottom right is always the next step: **Submit**, then **Next**, then **Finish** on the last activity. Your answers are saved as you go, so you can close the lesson and come back; it reopens where you left off.

Some lessons hold you at a scored activity until you reach a minimum score. The player tells you what you got and what you need, and gives you **Try again**. After the allowed number of tries, **Continue** appears as well.

## Simulations

On a simulation activity you have a few ways to play it:

* **In VR**: you receive a pincode to enter on your VR device.
* **On the web**: the simulation launches in your current tab.
* **On desktop**: if you have the HyperSkill Desktop application installed, you can launch it there.

## Finishing and retaking

The results screen shows right answers out of questions asked. Open response and flash cards are not counted, and the screen says so when a lesson mixes them with quizzes.

**Retake lesson** starts the lesson again as a new attempt.

## Feedback

Every activity has a **Feedback** button at the bottom. Tell us what is working or confusing; it reaches the SimInsights team.