# Pi Day

Image Credit: Timothy Muza

Pi is the mathematical constant that determines the ratio of the circumference of a circle to it's diameter, and the area of a circle to it's radius. It is represented by the greek letter **p**.

## When Is Pi Day Celebrated?

**Pi Day** is celebrated on 14th March each year.

## So, What Is Pi Day About?

Pi's value is usually taken to be 3.14, hence March 14th, March being the third month.

So basically, it is a gag on the date.

## How Do I Celebrate Pi Day?

To celebrate the day, you can:-

The official website of Pi Day can be found at piday.org, where you can find out motre about the day and even see Pi calculated to 1 million digits.

## Can You Be Serious For A Moment?

If your kids are struggling with using Pi to find the area and circumference of circles, there is a good explanation on BBC Bitesize, with a video and practice questions.

**About the Author**: Jacqui O'Brien is the Editor of eParenting.

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