Happy Fibonacci day! In honor of this cool day, here is a fabulous video that shows how plants use the golden ratio to determine the angle to grow their leaves in order to maximize photosynthesis...and the many myths about other logarithmic spirals. www.youtube.com/watch?v=1Jj-...

This semester, I audited a course about observing endangered species. We met at the zoo every Friday for data collection. Of course, I turned it into a math field trip for data literacy. My presentation is today and I'm so excited!

I'm doing a data collection task with kids and could use your help. How long does it take your dog to get the squeaker out of a toy?