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).
(Math | Miscellaneous | Constants | PI) Pi is a name given to the ratio of the circumference of a circle to the diameter. That means, for any circle, you can divide the circumference (the distance around the circle) by the diameter and always get exactly the same number. It doesn't matter how big or small the circle is, Pi remains the same.