This is a song composed for Pi Day! Imagine being able to hear Pi as musical notes! This is a violin solo composed by Steven Rochen, based on the numbers of PI to 220 places. This is a fun video with facts and a must watch for Pi Day. (4:15)

This selection features animation showing the digits of Pi. Teachers could use this brief segment to accompany study of Pi and/or Pi Day celebrations. (01:09)

The early history and the uses of the mathematical notation - PI - are presented through both film footage and computer animation in this 'Project Mathematics" film. (24:21)

The State of Indiana nearly passed a law which would have made Pi equal 3.2. This short video clip, covers information on Pi and squaring circles. (4:56)

Pi is defined as the ratio of the circumference of a circle to its diameter. A frisbee is used to show the definition of pi. The units for pi, radians, are discussed. The conversion factor between revolutions, degrees, and radians is introduced. Want Lecture Notes?
This is an AP Physics 1 topic.

Content Times:
0:22 The definition of pi
0:49 Demonstrating the definition of pi
1:35 The units for pi (radians)
2:04 revolutions, degrees, and radians
2:28 Please use rad for radians (not r, that is for radius)

From YouTube, produced by Ken Ferrier / Antoni Chan

This selection contains animation showing the lyrics to the song
" American Pi" accompanied by music and singing of the song. The song is set to the tune of " American Pie" by Don McClean. (05:36)

In this video, a huge spiral is made of dominoes. Using a formula with Pi, shown on the screen, the total number of dominoes is estimated to be 10,178.75. 10,059 were actually used. (03:14)

This video clips shows a group of guys performing mathematical songs about pi. This video is slightly hard to understand so teachers might want to turn up the volume in order to hear. (4:25)

Investigate the circumference and area of a circle. Examine what
underlies the formulas for these measures, and learn how the features of the irrational number pi (π) affect both of these measures.

Learn circumference, radius, pi and more through music! This animated video goes through the vocabulary used in the geometry of a circle, such as what a circle is, radius, diameter, circumference, pi, and it gives the formulas for finding each. Video is good quality and good for all students as review or initial learning of the concept. (01:51)

The video is in song form and discusses the circumference, radius, pi and more. The video shows the formulas for finding circumference and area, and also explains the definition of Pi. (01:51)

This Discovery Education video discusses irrational numbers, such as the number pi because it has no decimal equivalent. Then, it discusses how irrational numbers relate to rational numbers. The video is good quality and good for all students as a review or initial learning of the topic.(02:23)

Finding the perimeter of a semi-circle involves a math formula that starts with C equals two Pi R. Formulate the rest of the perimeter math equation to find the circumference of a semi circle with this video.

Students learn that the circumference of a circle is the distance around the circle, and the formula for the circumference of a circle is 2 times pi times the radius of the circle. Pi is the ratio of the circumference to the radius, which is approximately 22/7 or 3.14. (02:27)

The volume of a cylinder can be calculated by using the formula for the area of a circle multiplied by the height of the cylinder, expressed as pi R squared H. (02:26)

Calculating the perimeter of a circle, which is known as the circumference, can be done by multiplying the number pi by two times the radius. The instructor uses a document camera to model this concept. (02:24)