The standard letterboard teaches you how to write. Yet it isn’t sufficient for mathematics. With my math skills, I tried to solve routine calculus problems. Unfortunately, I wasn’t able to use a regular letterboard. Now I needed to design my own. You’re looking at the result.

The front page of my math letterboard

The back page of my math letterboard

You can download the letterboard here. Please let me know if you’re more satisfied with this one.