Stop Motion of a Circle

HERE'S A STOP MOTION PROJECT

Of a circle and how they came up with the pi ratio: 3.14159265359  or just 3.14

https://umt.box.com/s/mpqyh7dszjb1flg7077shf64zongwwgf Stop Motion photography can be done in the classroom by students with any device-- iPad, etc.  This was taken with an iPhone and edited with Life Lapse app.