Conceptual momentum for difficult technical courses.
In an indirect bandgap a photon supplies the energy, but the transition only completes when a phonon supplies the missing momentum. Phonon the product supplies the missing conceptual momentum for students facing heavy courses — a single weekly loop of preparation, review, and targeted practice, with analytics that tell staff exactly what to cover.
The interface always answers two questions: where am I in the cycle, and what do I do next.
One loop, repeated every week
A short primer before class, so the lecture lands on prepared ground instead of cold.
Happens in the hall — external to the app. Phonon just marks where you are in the loop.
Consolidate what was just covered while it is still fresh, before it decays.
Prep with targeted practice; the TA arrives with a briefing built from where the cohort struggled.
Every concept, two ways
Pick a default at sign-up — or let Phonon vary it and learn from what sticks. The mode switch stays visible mid-session; switching re-renders the current step in the other variant and never resets your progress.
Feedback that escalates, never punishes
A likely-slip hint — e.g. you used eV where joules were needed.
A tolerance number-line: your answer against the accepted band.
The why, the class answer distribution, and a mastery chip.
MCQ and numeric problems (with authored tolerances and units). Hints are free and logged, never penalized — the goal is momentum, not a grade.
Three roles, one course
Join with an enrollment code, run sessions, practice, and see your own progress and weak topics.
Aggregate-only cohort analytics — heatmaps, misconceptions, a timed recitation agenda. No student identities, by construction.
Author content, manage structure and publishing, and track per-student progress across the cohort.
Ready to start the loop?
Create an account, or join your course with the enrollment code from your instructor.