Lesson materials

Turn a YouTube lecture into organized study material.

Paste a public YouTube video. Fluorgan separates its topics in a Lesson Map, then lets you choose which parts to develop into a Class Notebook.

Class Notebook

For people who study from long lectures and want to find concepts, examples, and steps in the explanation without replaying the whole video each time.

AI helps organize the Lesson Map and notebook. You can check the material against its video references.

From lecture to your next study step

Paste the lecture

Add a link to a public YouTube video.

Review the Lesson Map

Topics, relationships between parts, and durations help you choose where to begin.

01 · Concept and definition · 02 · Example and application · Duration and source segment

Choose a part

Generate a structured notebook for the selected part, with references to its source clips.

Study and practice

Read the explanation and examples; use quick questions and checkpoints to retrieve ideas.

Create cards if you want

Select concepts, formulas, or questions, review the cards, and save them to an existing deck.

Schematic demonstration with a synthetic topic; it does not represent a real lecture or user result.

More than shortened text

Fluorgan organizes relevant concepts, reasoning, examples, and steps without turning a lecture into a verbatim transcript. A notebook can include readable formulas, identified exercises, demonstrations, and descriptions of what appears on the board when that helps explain a segment.

Shortened text / Class Notebook

Continuous prose — Content organized by topic
Few links to the original — Jump back to a video segment
Exercises may be mixed in — Exercises and solutions organized
No lesson map — Lesson Map before choosing a part
Ends with the text — Can become reviewable cards

Understand, practice, and choose what to review

A notebook can include identified exercises, demonstrations, organized solutions, and retrieval questions. When a solution was reconstructed or the original explanation was incomplete, that condition can be indicated. A quick test at the end of a part helps revisit ideas; it is not a mastery diagnosis.

Then you can select concepts, formulas, and questions to generate cards and review them before saving. Saved and activated cards enter Fluorgan's regular review flow.

Usage limits

Video minutes are separate from the plan's regular card-generation quotas. The limits below are enforced by the account's video contract.

Free · one-time trial

Available minutes: 20 min per cycle
Maximum source length: up to 60 min
Maximum part length: up to 20 min
Active projects: 1
Concurrent generations: 1
New parts per day: 1

Pro

Available minutes: 180 min per cycle
Maximum source length: up to 720 min
Maximum part length: up to 45 min
Active projects: 10
Concurrent generations: 1
New parts per day: 3

Creating a new version of a part uses its corresponding minutes again.

Frequently asked questions

Which videos work?: In this version, public YouTube videos.
Do private or unlisted videos work?: No. Private videos are not supported in the alpha; use a public video.
Does Fluorgan transcribe the whole lecture?: No. The notebook organizes relevant concepts, reasoning, examples, and steps. It does not provide a verbatim transcript or guarantee a complete summary.
Do cards use video minutes?: No. Cards use your plan's regular card-generation limits and can be reviewed before saving.
How are minutes counted?: The reservation uses the duration of the selected part. Free includes one 20-minute trial; Pro includes 180 minutes per cycle.
Can I generate a new version?: Yes. The previous version is preserved. Creating a new version uses the selected part's corresponding minutes again.
Can I check the original explanation?: Yes. Source references let you return to the video segment and check its explanation in context.
Can generated content contain errors?: AI-generated content can contain errors. Fluorgan keeps video references and lets you report issues to make checking easier.