Watch understanding happen.
LessonSlate turns a single problem into a short animated video where a student and a teacher work through it together — confusion, a wrong turn, the correction, and the click of it finally making sense.
No animation skills required · 1080p MP4 & vertical Shorts · Self-paced, with a scored knowledge check · Chemistry, Algebra 1, Algebra 2, Geometry & Nursing today
A real lesson, generated end to end by LessonSlate — with Maya & Ms. Rivera.
People learn by watching other people learn
Most lessons skip the confusion and jump to the clean answer. LessonSlate keeps the messy middle — because that's where the learning actually lives.
Learn by observation
Viewers watch a relatable student puzzle through a problem, so there's no pressure to perform — just the low-stakes comfort of following along.
Imperfect on purpose
The student hesitates, guesses, and gets things wrong. The teacher models real thinking, not brilliance — so mistakes become the most useful moments.
Reasoning you can see
Every step is drawn on a shared canvas. Given values, unknowns, and results are colour-coded, so the logic reads clearly even with the sound off.
Five steps, one click for you
Classify
The problem is matched to one of 240+ canonical shapes.
Dialogue
A student and teacher generate a Socratic back-and-forth.
Voice
Distinct, expressive voices speak each line naturally.
Whiteboard
The canvas animates every step in time with the speech.
Video
It's rendered to a shareable 1080p MP4 with metadata.
Different people, same slate
Whether you're teaching a class, building a catalogue, or just trying to get it, LessonSlate meets you where you are.
Educators
Scalable, engaging instructional media without an animation team.
Creators & publishers
A repeatable engine for channels, courses, and textbook companions.
Students
High school and college. Watch someone learn it first, then try it yourself — no pressure.
Parents
Calm, patient, vetted lessons you can hand to your learner with confidence.
Built for the lesson nobody is there to teach
Most learning now happens with no teacher in the room — homework, a course site, a catch-up session at 11 p.m. A recorded lecture assumes you followed it. A LessonSlate lesson assumes you did not, and puts the question you were about to ask into the mouth of the student on screen.
The learner sets the pace
Pause, rewind the ten seconds that did not land, watch it four times. The teacher on screen never gets impatient and never moves on.
Captions on a real track
Package a lesson and it carries a WebVTT subtitle file, timed off the same clock as the audio so it cannot drift.
A scored knowledge check
Questions built from more than 600 hand-written notes recording what learners really get wrong — so no wrong answer is invented filler.
Drops into your platform
A SCORM package your learning platform imports, which then records who finished and what they scored.
What LessonSlate teaches today
Notation-aware lessons that speak formulas, charges, and units the way a chemist would — across ten domains.
Equations balance themselves and coordinate grids come alive as Maya and Ms. Rivera work through the core of first-year algebra.
Naomi and Ms. Rivera push into second-year algebra — complex numbers, logarithms, and rational functions — with every ± and asymptote drawn out on the canvas across thirteen domains.
Angles, triangles, circles, and solids come alive on the canvas as Cody and Ms. Rivera reason through proofs and measurement — across twelve domains.
Priya and Dr. Sandoval work the arithmetic a nurse has to get right at the bedside — the dose for a patient's body weight, the volume to draw up from a vial, the rate to set an infusion pump to. Dr. Sandoval is a nurse educator rather than a chemist, so the reasoning is clinical rather than academic, and every unit conversion is written out on the canvas.
Nursing students take a chemistry course usually called GOB — General, Organic & Biological. LessonSlate covers its calculation side. Under Nursing today that means dosage and IV calculations; the general-chemistry topics the same course includes — solutions, concentration, acid & base — are on the site under Chemistry. The Organic and Biological parts are about drawing molecular structures rather than arriving at a number, and are not covered at all.
These are practice problems for learning the calculation. They are not clinical guidance, and no dose shown should be used to treat a patient.
College Algebra and Gen Chem are courses you've already met
Algebra 2 is College Algebra under a new name, and AP Chemistry was built to match freshman General Chemistry. Same skills, faster pace — and LessonSlate already teaches them.
Watch the units cancel themselves out
Dimensional analysis is hard to hold in your head and easy to see. On the canvas, matching units strike through and vanish until only the answer is left.
Blue = given · struck through = cancelled · green = result
A colour for every kind of number
LessonSlate uses one consistent colour grammar so the reasoning is legible at a glance — even muted, even paused.
Given
The values the problem hands you.
Unknown
What you're solving for.
Result
The answer as it resolves.
Error
A wrong turn, shown briefly, then corrected.
Watch full lessons free on YouTube
Every lesson LessonSlate produces goes up on our channel. Browse by subject, watch as many as you like, and subscribe for new ones.
Four points on a titration curve
Sam and Dr. Chen titrate propanoic acid with sodium hydroxide, tracking the pH from the acid alone, through the buffer, to past the equivalence point.
Cracking a quadratic
Maya and Ms. Rivera complete the square on y = x² − 4x + 3 to find its vertex and roots — every false start and fix included.
A dose for a child's weight
Priya and Dr. Sandoval catch the pounds-for-kilograms slip before it reaches the syringe.
Browse the full library
Dozens more free lessons across chemistry, algebra 1 & 2, geometry, and nursing — new ones added regularly.
Turn your next problem into a lesson worth watching
Paste a problem, choose a subject, and let LessonSlate Studio do the animating, voicing, and rendering.
Get started