Know what to study next.

Upload your math notes, PDFs, or review sheets. Stemry turns your course material into guided practice, names costly mistakes, and tells you what to study next.

Course material

Add what your class is using.

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Choose a PDF or imagePDF, PNG, JPEG, or WebPChoose files
PDF

lecture-04.pdf12 pages

PDF

problem-set-3.pdf8 pages

IMG

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Learning research

Why Stemry is built this way.

External research on these learning methods, not outcomes from Stemry students.

  • Guided AI tutoring

    >2× median learning gains in a 194-student physics RCT versus an active-learning class.

    Scientific Reports · 2025 · RCT

  • Active STEM practice

    ~6% higher average exam scores than lecture courses across 225 undergraduate STEM studies.

    PNAS · 2014 · Meta-analysis

  • Detailed feedback

    ~61K students across 435 studies; high-information feedback showed the strongest effects.

    Frontiers in Psychology · 2020 · Meta-analysis

  • Adaptive review

    g = 0.70 medium-to-large advantage for adaptive systems over non-adaptive instruction across 45 studies.

    J. Educational Computing Research · 2024 · Meta-analysis

Guided practice · Mistake repair

Think first. The answer unlocks after you do.

Every problem comes with a hint ladder instead of an answer key. Every miss comes back with a name and a fix, not a red X.

  1. Hints before answers

    Four rungs, from a small nudge to the full solution. You climb only as far as you need, so the thinking stays yours.

  2. Misses get a name

    Not just “wrong.” Stemry names the pattern “missing inner derivative” so it becomes fixable.

  3. Repairs win the points back

    Each repaired pattern feeds topic mastery and unlocks the next challenge. Mistakes aren’t dead ends here.

Product preview

Start with what you already have.

Your notes, problem sets, and review sheets are enough. When early access opens, your first upload becomes a topic map, guided practice, and a clear next step.

  • Built first for college math, beginning with calculus.

  • Early testers may be invited to help shape Stemry.

Join the waitlist