Why we teach it like this.
FIRST PRINCIPLES · I
retrieval
Recognising a page is not the same as being able to produce it. Pulling an answer out of your own head is harder than reading one, and that difficulty is the entire point — it is what makes the thing stay. Every screen on Vofti is built to make you produce before it lets you read.
Most revision sites give you a wall of bullet points and a button that says "test yourself". The question that motivated the topic in the first place — why a reactive metal and a toxic gas make something you put on chips, why an exiled claimant with a thin blood-line could be crowned on a Leicestershire field — arrives, if it arrives at all, as a footnote in the back of the textbook.
Vofti starts at the other end. Every topic, in every one of the 30 subjects, opens with a concrete situation you have to do something about. Chemistry starts at the tanker of liquid nitrogen; history at 22 August 1485; psychology at a sixth-former who changes her mind and keeps it changed. The definition, the diagram and the named theory arrive afterwards — once they have earned their way in.
"A model is a story short enough to remember in an exam, and useful enough to argue with in an essay."— Vofti's editorial line.
Then we make you play with it. There are 15503 hand-written questions on Vofti across multiple choice, true/false, definition, calculation, application, flaw-spotting, diagram and extended response — every one tagged to a point in the official specification, every one marked the instant you answer it, with the explanation attached. Not a score at the end of ten questions: the reason, immediately, while you still care.
Extended answers are marked against the framework your subject actually uses — not one house style bent to fit everything. Economics and business are marked as Knowledge · Application · Analysis · Evaluation; history as Argument · Evidence · Analysis · Judgement; English as Point · Evidence · Analysis · Context; the sciences as Statement · Evidence · Explanation · Conclusion. The marker returns a number out of the marks available and a note on the single biggest thing to fix. It is advisory — a rehearsal, not an official mark.
Every answer feeds a private dossier. Topics you can do fade into the background. Topics you fumble surface again, in a slightly different shape, until they don't. By June you have a personal map of your whole specification, and a much shorter list of things left to revise.
None of this is novel. It is more or less how any subject is taught at its best — in the lessons of the teachers who are properly good at it, who ask before they tell and never let a wrong answer pass without an explanation. Vofti is the attempt to put that lesson, with its questions, its frameworks and its marker, on the open web. Free, for whichever of these specifications you happen to be sitting.
Four moves. Named for your subject.
Every extended answer, in every subject, is the same four moves in a different accent. Vofti uses your subject's own names and its own order — a history essay is never marked like an economics one.
KNOW YOUR GAPS.
Every quiz feeds a private tracker, one row per specification point, across every subject you study. Topics you ace fade. Topics you fumble surface. The dossier learns what you need.
Why trust this?
It marks against your subject's own framework and names the biggest single fix. It is a rehearsal partner, not an examiner: no exam board has seen it, and no mark it gives is an official one.
Hand-written items across 30 subjects — multiple choice, definition, calculation, application, flaw-spotting, diagram and extended response — each tagged to a point in the official specification.
No card. No tracker. First 100 students who sign up are locked in at free for life — if Vofti ever introduces a paid tier, you won't be on it.