I start this activity by handing out buckets of tiles (any small objects will do) and asking students to take 10. They can sort their ten tiles into any number of piles, and their “prize” is the product of the … Read More
Odd Perfect Squares
Pythagorean Card Table
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.
Night Boat Photography
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.
Lex was my advisee, who died unexpectedly and tragically. His parents set up a scholarship in his memory for boys without parents. There was an article about it in the Boston Globe.
Making a multiplication table is an excellent beginning Excel Activity. This video shows an efficient way to do it using absolute references, but there are many other approaches. I use an open-ended handout for this activity in class. This video … Read More