PI Day 2014

We welcomed PI day by learning about what our teacher calls "the secret of circles".  We read the book Sir Cumference and the dragon of PI and then we experimented on our own with different size circles and different materials for measuring circumference and diameter.  We tried yarn, pipe cleaners, ribbon, and even string licorice!  We discovered that no matter the size of the circle the length of the yarn always went three times and a little more across the center of the circle! We then worked on mastering our measuring skills.  We learned that we have to be careful when we line up our rulers or our measurements won't be accurate. We found that when we measured accurately our circumference divided by our diameter was always close to three! We had to work together for this project and found that it helped to have extra hands and eyes to get the measurements right. We had a lot of other fun activities to celebrate the day! Puzzles, games, etc. It was a fun day of learning.