Breukenatelier

Breukenatelier turns your own table into a hands-on maths workshop. A virtual cake rests on the bench, a handful of hungry guests are waiting, and your job is simple to say but real to do: cut the cake into equal pieces so everyone gets a fair share.

There are no red crosses and no buzzers. The material corrects itself — uneven slices simply aren't fair, and only when every piece is the same size does the cake glow and reveal its fraction (1/2, 1/3, 1/4, and beyond). The whole cake always stays in view, so you never lose sight of what "one whole" means. As the number of guests grows, you discover for yourself why more pieces means each piece gets smaller.

Play it flat in any browser by clicking to cut, or — experimentally — open it on a Quest 3 and reach out in passthrough, slicing the cake right there on your real desk while the room gently dims around the work. Calm, tactile, and built for short, focused sessions for ages 9–12.