About CommeUnJeu

Hi, and welcome! I’m Vincent Tariel-Adam, founder of CommeUnJeu — a bilingual (French/English) mathematics platform, from Grade 1 to Grade 12.

CommeUnJeu covers two curricula: the International Baccalaureate (IB) and the French Éducation Nationale, with 200+ lessons across 13 grade levels.

Most math platforms are libraries of fragmented content; CommeUnJeu is a unified data architecture. The core of the project is the “Data” — the structured lessons themselves. Every lesson is authored within a single, coherent pedagogical thread across all grade levels, so ideas evolve logically, vocabulary stays consistent, and progression is intentional.

This continuity means that a student encountering functions early on is building on the same conceptual foundations they will rely on years later for advanced study. CommeUnJeu is not just a website — it is a complete mathematical learning journey mapped as a continuous, connected dataset.

For teachers: guides to teaching fractions and probability with the site’s resources, and the two research articles they are drawn from:

• “Sharing a unit, measuring a length: a didactic analysis of a teaching progression for fractions from Grade 1 to Grade 8” — arXiv 2610.14735 (2026).
• “An event is a set, not a number: building the algebra of events before the probability measure in a school progression” — arXiv 2610.34803 (2026).

My ORCID researcher identifier: 0009-0004-4668-3836.

The platform is available on the web, on YouTube, and on mobile (Android app published, iOS coming soon).

All content on CommeUnJeu is available for personal use only. Please don’t reproduce or distribute materials for commercial purposes.

If you want free knowledge, please share this project with your network.

If you’d like to get in touch or chat with others in the community, feel free to join our Discord server!

You can also contact me directly via my LinkedIn page.

Thanks for visiting!