Pi Day: Circle Hunt!

Just in time for your Pi Day celebration! I put the beginning of this activity together with a younger audience in mind (Grades 1-3) but also included some spreadsheet love for 4th and 5th graders.

When I last did this activity (in a joint operation with Lacosta way back when) it was Anthony Bizardie who made "the discovery" about the magical 3.14.

Who will your Master Conjecturer be???


Pi Day: Circle Hunt! from (Chris) on Vimeo.

Why Pi?

I recently attended an excellent Webinar, Slices of Pi, with Key Curriculum Press. In one of the activities, we investigated Pi in a rather unusual way: by looking at the ratio 22/7.

In honor of the upcoming Pi Day celebrations, I thought I'd share this with you and your students. Very interesting!

Pi Flower from (Chris) on Vimeo.

"You better lose yourself in the digits of pi, it’s a high"

What the heck.... it's fun. /grin Are you ready for Pi Day??? Maybe this will help get your class in the mood!



Mathmaticious is still the king, imho. 2,398,000 views! Superstar!

Pi Day is Just aROUND the Corner!

Catch the web presentation, Slices of Pi, by Andres Marti. Slices of Pi provides you an opportunity to engage in Sketchpad activities that explore circles and use dynamic approaches to reveal the value of pi. In this webinar, you will:

• plot geometric measurements to derive the circumference-to-diameter ratio, then slice up a circle to derive the area formula

• explore simple animations that unexpectedly reveal pi

• investigate inscribed polygons, equations of circles, and the relationship between circles and ellipses.

Choose one of two offerings:

Tuesday, February 15, 2011 4:00 PM - 5:00 PM EST  
Wednesday, February 16, 2011 7:00 PM - 8:00 PM EST