All notebooks look almost the same: colourful covers with lines or cells inside. But why put rules into youngsters minds? Enough is enough.
We split notebook in two parts just as our brains: left and right. Left side is with cells for formulas, math and other boring things. The right one is blank for creativity. Even the cover was created in different parts of the world to represent two sides of the brain. So feel free to use this notebook the way you need.