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

# Watching Lessons

> How to watch lessons, track progress, use transcripts, flashcards, AI and download materials

## Your lessons

Lessons are the heart of learning on the platform. Each lesson can contain videos, texts, downloadable files, transcripts, AI flashcards and much more.

## Accessing a lesson

<Steps>
  <Step title="Enter the course">
    Navigate to the desired course.
  </Step>

  <Step title="Choose a module">
    Expand the module that contains the lesson.
  </Step>

  <Step title="Click the lesson">
    Select the lesson you want to watch.
  </Step>

  <Step title="The lesson opens with all tools">
    Video player, sidebar tabs with progress, flashcards, transcript, AI and comments.
  </Step>
</Steps>

<Tip>
  Use the "Next lesson" button in the course to go directly to the next uncompleted lesson.
</Tip>

## Video player

The player has full professional controls:

<Tabs>
  <Tab title="Basic controls">
    * **Play/Pause** — Play or pause (`Space`)
    * **Back/Forward 10s** — Left/Right arrows
    * **Volume** — Up/Down arrows
    * **Mute** — `M` key
    * **Progress bar** — Shows and allows navigating through the video
  </Tab>

  <Tab title="Speed">
    Options: 0.5x, 0.75x, **1x** (normal), 1.25x, 1.5x, 2x

    <Tip>
      1.25x-1.5x is great for reviewing familiar content without losing comprehension.
    </Tip>
  </Tab>

  <Tab title="Quality">
    Auto, 360p, 480p, 720p (HD), 1080p (Full HD), 4K (if available).

    <Info>
      "Auto" mode adjusts quality automatically based on your connection.
    </Info>
  </Tab>

  <Tab title="Full screen">
    * `F` — Toggle full screen
    * **Picture-in-Picture** — Watch in a floating window while browsing
    * `Esc` — Exit full screen
  </Tab>
</Tabs>

## Lesson sidebar tabs

Beyond the video, the lesson sidebar offers several tools organized in tabs:

### Progress tab

* **Overall course progress** with visual bar
* **Mark lesson as completed** manually
* **Rate the lesson** with stars
* **Navigate between lessons** in the module

### Transcript tab

If the video has a transcript available:

* **Full text** of the video with timestamps
* **Search within transcript** — Find specific sections by keyword
* **Click to jump** — Click any section to jump to that point in the video
* **Copy transcript** — Button to copy all text

<Tip>
  The transcript is a powerful review tool. You can search for specific concepts and jump to the exact moment they're explained.
</Tip>

### Flashcards tab (AI)

When AI is active, study flashcards are automatically generated from the lesson content:

* **Front and back cards** — Question on front, answer on back
* **Flip animation** — Click to flip the card
* **Difficulty level** — Easy, medium or hard
* **Navigation** — Previous/next buttons and progress indicators
* **Gamification** — Earn **+5 points** after reviewing all flashcards for a lesson

<Info>
  Flashcards are generated once per lesson and available to all students. Great for reviewing before practice exams!
</Info>

### AI Assistant tab

A contextual AI assistant understands the lesson content (text and video transcript):

* **Quick prompts** — "Summarize this lesson", "What are the main points?", "Explain it simply"
* **Free questions** — Type any question about the content
* **Continuous conversation** — Ask follow-up questions
* **Credit consumption** visible during use

### Comments tab

Complete discussion system within each lesson:

* **Post comments** with text
* **Filter** — By most recent, oldest or "my comments"
* **Edit** your own comments
* **Delete** your own comments
* Avatars and timestamps for each author

<Tip>
  Before asking, check if your question has already been answered in the comments!
</Tip>

## Downloading materials

Files provided by the teacher can be downloaded directly in the lesson:

* **PDFs** — Receive automatic watermark with your data for content protection
* **Other files** — Code, spreadsheets, images, provided via secure link
* File **size indication** before download

<Note>
  PDF watermarking is applied automatically by the server and includes identification information for material protection.
</Note>

## Lesson progress

### Auto-save

Video progress is saved automatically:

* **Every 15 seconds** during playback
* **When switching tabs** or minimizing the browser
* **When closing the page** — Progress is saved before exit

### Resume where you left off

When returning to a lesson, the video opens exactly where you stopped. You can choose to continue or restart from the beginning.

<Info>
  Progress syncs across devices — start on your computer and continue on your phone!
</Info>

### Auto-completion

The lesson is marked as completed when:

* You watch at least **90% of the video** (auto-complete)
* Or manually click **"Mark as completed"**

After completing:

* Lesson gets a completed icon
* Module and course progress are updated
* Next lesson is unlocked (if sequential progression is enabled)
* You earn **gamification points** automatically
* Your linked **objectives and skills** are updated

## Integrated quiz

Some lessons have a quick quiz at the end:

* Multiple choice or open response questions
* Immediate feedback (if configured by the teacher)
* May be required to mark the lesson as completed
* **AI explanation** — When you get a question wrong, click "Explain" for an educational explanation

<Info>
  Integrated quizzes are different from practice exams — they are quick assessments linked to the lesson.
</Info>

## Navigation between lessons

### Sidebar navigation

On the side of the lesson screen:

* List of all course lessons
* Current module expanded
* Visual status (completed, in progress, locked)
* Click any lesson to switch quickly

### Keyboard shortcuts

| Shortcut  | Action                  |
| --------- | ----------------------- |
| `Space`   | Play/Pause              |
| `←` / `→` | Back/Forward 10 seconds |
| `↑` / `↓` | Volume                  |
| `F`       | Full screen             |
| `M`       | Mute                    |
| `0-9`     | Jump to % of video      |

## Watching on mobile

The platform works perfectly on mobile devices:

* **iOS** — Safari or installed PWA
* **Android** — Chrome or installed PWA
* **Tablets** — Optimized interface

<AccordionGroup>
  <Accordion icon="wifi" title="Save mobile data">
    Connect to WiFi when possible and use 360p or 480p quality.
  </Accordion>

  <Accordion icon="headphones" title="Use headphones">
    Improves the experience and helps you focus in noisy environments.
  </Accordion>
</AccordionGroup>

## Common problems

<AccordionGroup>
  <Accordion icon="circle-pause" title="Video won't load or keeps buffering">
    Reload the page, lower the video quality, clear browser cache or try a different browser.
  </Accordion>

  <Accordion icon="lock" title="Locked lesson">
    Complete the previous lesson (watch 90%+), take the required quiz if any, or check the release date.
  </Accordion>

  <Accordion icon="floppy-disk" title="Progress is not saving">
    Use normal browser mode (not incognito), allow site cookies and check your connection.
  </Accordion>
</AccordionGroup>

## Next steps

<CardGroup cols={2}>
  <Card title="Practice Exams" icon="file-pen" href="/en/features/simulados">
    Test your knowledge with practice exams
  </Card>

  <Card title="Objectives & Skills" icon="bullseye" href="/en/features/objectives-skills">
    Track your progress by competency
  </Card>

  <Card title="AI" icon="brain" href="/en/students/ai-assistant">
    Use AI to study within lessons
  </Card>

  <Card title="Gamification" icon="trophy" href="/en/addons/gamification">
    Earn points for watching lessons
  </Card>
</CardGroup>