Built out of what you already know
School isn’t boring. It’s just unconnected.
Paste the paragraph you have read four times and still cannot hold. It comes back rewritten through the thing you already think in — with the places the comparison stops working named out loud.
Try it here
Pick something you actually do.
You already read a ramp by its steepness, and you already know the one place it stops climbing. That flat spot at the lip is the turning point, and finding it is the whole of the optimisation question your sheet is asking.
Where it breaks
A ramp is a physical object, so it cannot be infinitely steep. A curve can. Once the question involves a vertical asymptote the ramp stops being able to show you what happens.
Your material
Paste the paragraph, the slide, the problem set you are stuck on. It works from exactly what you give it, not a generic version of the subject.
Eight subjects
Maths through to English literature, with the topic inside each one chosen to fit how you already think.
Free to try
No card, no trial countdown. Answer eight questions and a real lesson comes back straight away.
The tour
Two ways it works on the same material
Paste one thing you are stuck on. Build a lesson maps it onto what you already know; Simplify rewrites it in plain words.
Build a lesson
The paragraph you cannot hold, rebuilt
Paste it exactly as it is written. It comes back as an equation between what you already know and what the course is asking, with the places the comparison stops working named out loud.
Get started →Why do we set f′(x) = 0 when minimising the material for a box?
Week 7 lecture notes · Optimisation, p. 6
Any interior minimum of a differentiable function sits at a critical point, so f′(x) = 0 is where to look first. Then compare every critical point against the endpoints to see which one actually wins.
How it works
Nobody is bad at a subject. They are just missing the reason.
Forcing yourself through material you find pointless is a strategy with a known failure rate. Wanting to know the answer is not a strategy at all, which is exactly why it works.
It reads what you paste
The paragraph, the slide, the problem set — whatever you give it. It works out the subject and the topic underneath before it tries to explain anything.
Then it reads you
What you spend your free time on, and what you are already fluent in without calling it that. Eight questions, about ninety seconds.
It starts the explanation there
Not at the definition. The analogies teach it; the practice questions stay in the language your marker expects.
What it actually does
A profile that keeps moving
What you find interesting at fifteen is not what you find interesting at seventeen. Tell it once, correct it whenever, and the lessons follow you rather than the other way round.
Planned backwards from where you are going
Say you want to build games, or get into a specific course. Interlinked works out which parts of this term carry the most weight for that, and puts them first.
Explained the way you already talk
Same rigour, different register. It will not water anything down to reach you, and it will not hide behind a definition when a plain sentence would land.
Checked against your source
Every lesson is verified against the material you pasted before you see it. When the check is unhappy, the lesson says so at the top instead of quietly shipping.
It names where the analogy stops
An analogy that is never corrected teaches a misconception. Every lesson ends with the places the comparison breaks, in its own panel rather than a footnote.
Pricing
Two plans, both honest about what they are.
Nothing about how a lesson is written, or what it is written out of, depends on paying. A free lesson is checked against its source exactly as a paid one is.
- 10 lessons a month
- Every lesson checked against its source before you see it
- Your library and profile, saved to your account
- Where the analogy breaks, named on every lesson
- Everything in Curious, and:
- Simplify — anything dense, in plain words
- 300 lessons a month
- 10 a minute instead of 3
- Cancel any time
It does not write your essay or sit your exam. It changes where an explanation starts, so you understand the material instead of memorising a shape. The work is still yours to do.
Tell us one thing. We’ll hand back a lesson you actually want to finish.
Free to start, no card.