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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.

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Accessing a lesson

1

Enter the course

Navigate to the desired course.
2

Choose a module

Expand the module that contains the lesson.
3

Click the lesson

Select the lesson you want to watch.
4

The lesson opens with all tools

Video player, sidebar tabs with progress, flashcards, transcript, AI and comments.
Use the “Next lesson” button in the course to go directly to the next uncompleted lesson.

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Video player

The player has full professional 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

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Lesson sidebar tabs

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

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Progress tab

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

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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
The transcript is a powerful review tool. You can search for specific concepts and jump to the exact moment they’re explained.

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Flashcards tab (AI)

When Contextual 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
Flashcards are generated once per lesson and available to all students. Great for reviewing before practice exams!

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AI Chat 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

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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
Before asking, check if your question has already been answered in the comments!

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

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Lesson progress

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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

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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.
Progress syncs across devices — start on your computer and continue on your phone!

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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

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

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Keyboard shortcuts

ShortcutAction
SpacePlay/Pause
← / →Back/Forward 10 seconds
↑ / ↓Volume
FFull screen
MMute
0-9Jump to % of video

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Watching on mobile

The platform works perfectly on mobile devices:
  • iOS — Safari or installed PWA
  • Android — Chrome or installed PWA
  • Tablets — Optimized interface
Connect to WiFi when possible and use 360p or 480p quality.
Improves the experience and helps you focus in noisy environments.

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Common problems

Reload the page, lower the video quality, clear browser cache or try a different browser.
Complete the previous lesson (watch 90%+), take the required quiz if any, or check the release date.
Use normal browser mode (not incognito), allow site cookies and check your connection.

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Next steps

Practice Exams

Test your knowledge with practice exams

Objectives & Skills

Track your progress by competency

Contextual AI

Use AI to study within lessons

Gamification

Earn points for watching lessons