How did you learn the mathematical formula for pi? It was likely the way I learned it. I was told to commit the value pi = 3.14 to memory along with the formula to calculate the area of a circle.

“Genius is vision, often involving the gift of finding patterns where others see nothing but a chance collection of objects (Andersen, 2013).” My grandkids loved to play “I Spy.” It is a game we often ...