Instructional Video

Pi and the Size of the Universe

Curated and Reviewed by Lesson Planet

How many digits of pi would you need to accurately express the circumference of the universe? A mathematician attempts to answer this question in a Numberphile "Pi" video. It turns that only 39 digits are necessary to determine the circumference of the universe that is accurate to a hydrogen atom.

3 Views 1 Download
Additional Tags
Instructional Ideas
  • Team up with an astronomy teacher
  • Provide viewers with cloze notes to jot down information
Classroom Considerations
  • Learners should be familiar with circumference and pi
  • This video is hosted on YouTube
Pros
  • Shows step-by-step work of the results
  • Includes some interesting information about the history of finding digits of pi
Cons
  • None