How We Can Assist Children's Learning in and through Art. It is quite appropriate to assist children's learning in and through art and to ensure that children are equipped with the skills and techniques to enable them to express their own ideas better than they might do on their own.
The symbol used by mathematicians to represent the ratio of a circle's circumference to its diameter is the lowercase Greek letter Ï, sometimes spelled out as pi, and derived from the first letter of the Greek word perimetros, meaning circumference. In English, Ï is pronounced as pie ( /paÉª/, paÉª).
Pi is an irrational number (meaning the digits never end or have a repeating pattern) that is the ratio of the circumference of a circle to its diameter...this ratio is a constant for any circle, regardless of size.