To turn class notes into a revision video, paste the notes into a document-first tool like openCanviz, let it split them into one chapter per examinable idea, and let it draft narration and a drawn visual for each. A term of notes usually becomes five to fifteen minutes of video, split into twenty or thirty short chapters so you can jump straight to the topic you are weak on. The work you actually have to do is not production, it is deciding what is examinable and cutting the rest. And a warning worth having up front: watching a revision video is a weaker study method than testing yourself, so use it for the structuring pass and pair it with recall.

Why rereading your notes stops working

Notes are written by you, for you, in the moment you already understood the thing. They are compressed. "Mercantilism → Nav Acts → triangle trade" is a complete thought to the person who wrote it during the lecture and close to meaningless three months later.

Rereading feels productive because the words look familiar, and familiarity feels like knowledge. It usually is not. That gap is why the second pass through a set of notes feels fine and the exam does not.

Converting notes into a narrated video forces the decompression. Every shorthand has to become a sentence somebody could say out loud, and every arrow has to become a visible relationship. Doing that conversion is most of the value, before you watch a single second of the result.

How long your notes will actually run

Narration runs at roughly 150 words a minute, and a scene holds for around twenty-five seconds. That gives you a way to predict the video before you make it.

A single project targets up to about twenty minutes, so a full year is naturally two or three separate videos split at unit boundaries. That is also how you want to revise, so it costs you nothing.

The useful surprise here is how short it is. People imagine a term of notes is hours of video. Trimmed to what is actually examinable, it is usually ten to twenty minutes, and that is a thing you can rewatch on a bus.

What to cut

This is the whole job, so do it deliberately rather than pasting everything and hoping.

Cut anything you already know cold. Revision time spent on secure material is the most common way students feel busy and learn nothing. If you can state it without looking, leave it out.

Cut your own shorthand and admin. Page references, "see handout", the lecturer's asides, the dates of the lectures themselves.

Cut examples you can reconstruct. Keep an example only when the example is the thing being tested, or when the idea is meaningless without it.

Keep anything with a mechanism. Causes, sequences, conditions, thresholds, exceptions. These are what exams ask about and they are exactly what a drawn visual can hold and a paragraph cannot.

Keep the things you keep getting wrong. Your own error list is the highest value material you own, and almost nobody puts it in their revision video.

Chapter by examinable idea, not by page

The most common mistake is to chapter the video the same way the notes are organised, which is usually the order the material was taught. That order is a teaching order, not a recall order.

Chapter instead by the unit the exam will ask about. One idea per chapter, named as the thing you would be asked. "Why tobacco saved Jamestown" is a chapter. "Lecture 4, part 2" is not. When the chapter titles read like a list of possible questions, the video has become a revision tool rather than a recording.

Short chapters matter more than you would expect. Twenty-five second beats let you rewatch one idea in isolation, which is what you will actually do in the last week before the exam.

Make it

1. 1

   Gather the notes into one document

   Lecture notes, your textbook margin scribbles, and your list of mistakes, all pasted into one place. Do not tidy the formatting; it does not matter and it wastes an hour.

2. 2

   Cut to what is examinable

   Delete everything you know cold and everything with no mechanism in it. Expect to lose half. If you cannot bear to delete it, move it to a second document for a second video.

3. 3

   Expand your shorthand into sentences

   Every arrow becomes a stated relationship, every abbreviation becomes the full term at least once. This is the step that does the learning, so do not skip it or hand it off entirely.

4. 4

   Paste it in and set the length

   Set the target minutes and let it draft the chapters, narration and drawn visuals. Whiteboard style suits revision because the drawing builds as the point is made, which is the same thing a good teacher does at a board.

5. 5

   Rename the chapters as questions

   Go through the drafted chapter list and rewrite each title as the question it answers. This takes five minutes and is the difference between a video you watch once and one you navigate.

6. 6

   Fix only what is wrong

   Check the facts, the dates and the definitions, because you are going to memorise whatever this says. Rewrite any narration line that is vague. Ignore anything that is merely not how you would have phrased it.

The honest part: watching is not studying

Your revision video is a good structuring tool and a weak memorisation tool. The research here is unusually consistent and it is worth knowing rather than finding out in June.

Passively rewatching or rereading produces a strong feeling of fluency and comparatively little durable recall. Retrieving the answer from memory, getting it wrong, and correcting it produces much more, which is why past papers and flashcards outperform rereading so reliably.

So use the video for the two things it is genuinely good at. First, the structuring pass: watching your own material laid out as a chaptered sequence with the relationships drawn gives you the shape of the topic, which makes everything you memorise afterwards stick to something. Second, spaced re-exposure: a ten minute video is a thing you will genuinely rewatch a week later, where a forty page document is not.

Then do the actual work. After each chapter, pause and say the answer out loud before the narration does. That single change converts the video from something you watch into something you are tested by. There is more on this in how to study from video instead of rereading your notes.

What it costs

Generation is metered by the minute of finished video, roughly ten credits a minute split between the first draft and the final build. New accounts start with one hundred credits, which is about ten minutes of video, enough for a full topic without paying anything.

Videos on the free tier carry a watermark, which is irrelevant if you are revising from it yourself. If you need a clean copy because you are handing it in or sharing it, a one-off payment unlocks a single project permanently. That is covered in how to make a video for a school project or presentation.

Common questions

Will this work if my notes are a mess? Yes, and messy notes are the normal case. You do not need to tidy the formatting. You do need to expand the shorthand, because nothing can guess what your arrows meant.

Can I use my textbook instead of my notes? You can, but it usually produces a worse revision video, because a textbook is written to teach the topic from scratch and you are past that. Your notes plus your error list is a much better source, because it is already filtered to what your course actually emphasised.

How many chapters is too many? Rarely a problem. Thirty short chapters navigates better than eight long ones. The limit is the runtime, not the count.

Should I make one video per subject or one per topic? One per topic. Subjects are too long to rewatch, and the whole benefit is that rewatching is cheap.

Is it worth it the night before? No. The conversion work is where most of the learning happens, and doing it under time pressure means you paste everything in without cutting, which produces a long video you will not watch. Build it when you start revising, use it throughout.