Maths
Live Derivation
Watch a formula build itself, one line at a time, with every move explained.
Sample
Where the quadratic formula comes from
You can derive the quadratic formula by completing the square.
Learning or teaching a subject properly takes more than it should.
Philocoursa builds the course instead, planned, written, and ready to study or teach.
- You want to learn something properly, and no existing course fits your syllabus, your level or your goal.
- Chat gives you answers one at a time: no sequence, no practice, no way to see what stuck.
- Teachers and trainers spend evenings assembling slides, handouts and quizzes by hand.
Everything a course needs. Designed, not assembled.
- A course plan
- Modules that build forward, lessons that connect.
- Every lesson, complete
- Lesson content. Interactive slides. A handout with recall cards. A quiz with an answer key and a review that shows the gap.
- Open, both ways
- Bring any material in: a subject, a syllabus, a book excerpt, a public link. Take everything out, yours to edit: the handout as Word, the slides as PowerPoint, the quiz as PDF. No lock-in.
- Private by default
- Study in the lesson workspace or teach from the exports. Your courses are private to your account.
Start from anything.
Three steps, shown on the real app.
The hard parts, made visible.
Every lesson's slides, handout and quiz come in immersive modes that turn a hard idea into something you can watch, sort or trace. Here are six, each in a different subject. They are the real components, and nothing moves until you press it.
Medicine
Chain Reaction
A cause-and-effect chain builds itself, then lets you trace every link.
From the example lesson How vaccines train the immune system
Sample
How protection is built
You can trace the chain from antigen to faster response.
History
Timeline Builder
Put the events in order, then see exactly where your timeline went wrong.
From one assassination to a world war
SampleSummer 1914: put the steps from one assassination to a world war in order.
- Austria-Hungary declares war on Serbia
- Archduke Franz Ferdinand is assassinated in Sarajevo
- Germany declares war on Russia
- Austria-Hungary sends Serbia an ultimatum
- Germany invades Belgium and Britain declares war
- Germany promises Austria-Hungary its full support
- Russia orders general mobilisation
Move the events into order, then check your timeline against the real one.
Finance
Time-Lapse
Press play and watch forty years of saving happen in seconds.
From the example lesson Compound interest: how money grows on itself
Sample
Forty years of saving
You can describe when the two balances diverge.
Ecology
System Map
Connect the parts of a living system and see which links really hold.
What changed when wolves returned to Yellowstone
SampleWolves returned to Yellowstone in 1995. In the classic account of what followed, which links are real?
- Wolves
- Elk
- Riverside willows
- Beavers
- Songbirds
- Riverbanks
Choose the links that are real; each one you pick is drawn on the map, then checked.
Biology
Study Sheet
A handout you keep: steps that unfold, and cards that hide the answer until you try.
Cell division: how one cell becomes two
SampleCell division: how one cell becomes two
- Prophase: Replicated chromosomes condense into visible sister chromatids joined at a centromere, and the spindle begins to form.
- Prometaphase: The nuclear envelope fragments and spindle fibres attach to kinetochores on each centromere.
- Metaphase: Chromosomes line up along the cell's equator, the metaphase plate.
- Anaphase: Centromeres split and sister chromatids are pulled to opposite poles.
- Telophase: Nuclear envelopes form around each set and the chromosomes decondense.
- Cytokinesis: The cytoplasm divides, producing two daughter cells.
Finance, biology, physics. Yours next.
Each one opens as a full example lesson you can try without an account.
Learning it, or teaching it.
Self-learner
Pick a subject. Get a course with a plan, lessons and quizzes, not a pile of answers.
Student
Upload the syllabus. Get lessons that follow it, with quizzes that show the gap.
Teacher
Plan a term's modules and lessons, then export slides and handouts for class.
Trainer
Turn your material into a course, then export the slides, handouts and quizzes for your sessions.
Free to start.
400 credits cover a course plan and your first full lesson. No card. Your courses stay private.
Paid plans from $5 a month come once payments open. See pricing
Start freeWhat it can't do yet
- Maths is typeset in the slides only. Handouts and quizzes don't typeset equations yet.
- A lesson takes minutes to build, not seconds.
- English first. Other languages work but get less testing.
Questions
How is this different from asking a chatbot?
A chat answers one question at a time. Philocoursa plans a whole course first, then writes every lesson with slides, a handout and a quiz, in order, so you can study it through or teach from it.
Is the content accurate?
AI can be wrong. You review the plan before any lesson is built, every lesson shows its sources where it has them, and every download is an editable file, so you can correct anything before you use it.
How long does a lesson take to build?
A few minutes. You can leave the page while it builds.
Which subjects work?
Anything you can describe in a line or hand over as a syllabus. The example lessons are finance, biology and physics.
What can I download?
The handout as Word, the slides as PowerPoint, the quiz as PDF.
What does a credit buy?
A course plan costs 150 credits and covers up to 5 modules and 20 lessons. Each lesson's content costs 40; its handout 60, slides 25 and quiz 50 (up to 30 questions). A complete lesson is 175. Checking an attempt that needs AI grading costs 50. You get 400 free credits once, after you verify your email, while free places last. Credits never expire.
What happens when my credits run out?
Release 1 runs on free credits, and everything you build stays yours to open and download. Subscriptions, the better-value way to get credits, and one-off top-ups arrive once payments open. No card is needed until then.
Who can see my courses?
Only you. Nothing you make is public unless you share a download. The service providers we use to run Philocoursa, such as our AI provider and hosting, process it only for that purpose.