From one problem to a lesson worth watching
You bring a problem. LessonSlate handles the pedagogy, the voices, the animation, and the render. Here's what happens between your paste and your finished video.
One real lesson, in 78 seconds
The film has no sound; everything it says is on screen. Read it as text, or ask for the full lesson to open in your own platform.
Classify the problem
LessonSlate reads your problem and matches it to one of 240+ canonical "shapes" — mass-to-mass stoichiometry, limiting reagent, solving a linear equation, applying the quadratic formula, and so on. The shape decides the structure of the episode: which steps appear, where the pauses land, and what the student is likely to trip over.
Generate the Socratic dialogue
Two personas — a novice student and a patient teacher — talk the problem through. The student attempts steps, hesitates, and makes a deliberate mistake; the teacher guides the correction with questions instead of answers. The result is a real conversation with a beginning, a wobble, and a breakthrough.
Speak it naturally
Each persona gets its own distinct, expressive voice, with natural pauses and affirmations. A specialised step first rewrites technical notation — subscripts, ionic charges, units, exponents — into words a narrator would actually say, so "H₂SO₄" is spoken correctly rather than letter by letter.
Animate the Thinking Canvas
As the dialogue plays, a clean digital whiteboard draws the reasoning: values appear, units cancel, equations balance, a parabola sweeps, a limiting reactant depletes. Every animation is causally linked to what's being said, and colour-coded so the logic reads even with the sound off.
Render and package the video
The animation and audio are stitched into a finished 1080p MP4 — as a long-form lesson or a vertical short — complete with a persona-driven title and description ready for YouTube.
Alongside the video come the pieces a lesson needs when it is watched with nobody in the room: a WebVTT caption file and a scored knowledge check. For a course platform, all of it packages into a SCORM zip that reports a completion and a score. Why that matters for asynchronous learning ›
Confusion is a feature, not a bug
Traditional videos assume you follow along perfectly. LessonSlate assumes you don't — and builds the lesson around the questions you'd actually have. Each concept can expand into as many back-and-forth turns as the moment needs.
"The teacher models thinking, not brilliance. The student externalises confusion so the viewer never has to."
Who's who on the canvas
LessonSlate keeps the focus on the reasoning, not on cartoon faces. Two simple presence anchors carry the conversation:
Read the maths at a glance
Given
What the problem provides.
Unknown
What we're after.
Result
The answer resolving.
Error
Corrected in the moment.
One lesson, many formats
Long-form lesson
Full 1080p MP4 lessons — ideal for a class, a course, or a channel deep-dive.
Vertical shorts
Bite-sized reels and shorts for social feeds, pulled from the same reasoning.
Publish-ready metadata
Persona-driven titles, descriptions, and hashtags generated with every render.
Self-paced module
Video, captions and a scored check bundled as a SCORM package your course platform imports and reports on.
See the pipeline for yourself
Follow a single problem as it becomes a finished lesson, step by step.
Request lessons