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Bringing AI into Europe's education.

A tutor that lectures, grades like an examiner, and knows your syllabus — purpose-built for Europe's exams.

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Twelve national exams·all of them open today

The Lab · the science behind it

The learning science we build on.

The Lab is where EuraStudy is worked out in the open — the evidence behind the tutor, and the claims we intend to earn. We don't present usage as proof of learning gains.

THE POSTERIOR · P(KNOWN) AFTER EACH ANSWER1.00.0P( SKILL KNOWN )PRACTICE OPPORTUNITIES →MASTERY THRESHOLD · 0.95from the prior p(L0)a wrong answer lowers it — never to zeroMASTERED → STOP
Knowledge tracing

How a Machine Reads What You Know

Inferring what a student knows from the answers we can see — from Bayesian Knowledge Tracing to its deep-learning successors.

12 references · fact-checked→
WHAT A QUESTION IS WORTH · ITEM INFORMATION0.00.51.01.5-3-2-10+1+2+3INFORMATION I(θ)ABILITY θ →ITEM AITEM BITEM CA · a 1.2 · b −1.4 · peak 0.36B · a 1.2 · b +0.6 · peak 0.36C · a 2.4 · b +0.6 · peak 1.44double a → four times the peak, half as wideeach peak sits at its own difficulty, θ = b
Adaptive testing

Twenty Questions

Item response theory and computerised adaptive testing — pinning down ability in a dozen well-chosen questions.

18 references · fact-checked→
PLATE · THE FORGETTING CURVEEXPONENTIAL · S 6 d1.00.50.0R · RETRIEVABILITY051015202530DAYS SINCE STUDY →HALF-LIFE ≈ 4.2 dS · STABILITY = 6 drecall has fallen to 1/efreshly learned · R = 1without review, even well-learnedmaterial leaks awayMEMORY · LEFT ALONER(t) = e^(−t / S)
Spaced repetition

The Half-Life of Knowing

The forgetting curve and the schedulers built on it — timing review against the half-life of memory.

20 references · fact-checked→
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All twelve national exams are open today — from the Matura to the Panellinies. All it takes is a free account.

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EuraStudy

Bringing AI into Europe's education — from final exams to university.

Contact supporteurastudy@gmail.com

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EuraStudySummaThe exam studio — twelve European school-leaving exams.EuraStudyAlmaFor universities — in development.
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  • Austrian Matura
  • German Abitur
  • French Baccalauréat
  • Spanish Selectividad
  • Italian Maturità
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