That&#x27;s how I felt about math for a long time. The so-called good laziness. You don&#x27;t bother doing the hard way, you search for tricks. Symmetries, difference from simple cases as the girl did.<p>Instead of memorizing algorithms, kids should be shown this. It&#x27;s free gamification and, after some years, I believe it&#x27;s a core idea of what is, and why math can be pleasing.