I wrote this for a memorial service for Wendy in October 2008, which I was unable to attend. Wendy was my best friend in high school. The first time I met Wendy Soll, she was ten years old, and I … Read More
Walter was my colleague for 15 years. Ellen Faszewski wrote a remembrance of him.
Explores some patterns in Pascal’s Triangle using Excel, including using conditional formatting to make a Sierpinski triangle. Excel Level: Beginning Plus (introduces conditional formatting). Math Level: Elementary – College.