Personal

I'm ecstatically married to my best friend, Kari Elsila. We have two beautiful daughters, Maple and Laurel, and we live in a lovely house in Cleveland Heights, Ohio. See family photos.

I have a way cool family who are scattered all over the world.

I play the guitar, sometimes along with Kari, who plays the oboe.

Until recently, I served on the Board of Directors of Circle Pines Center, a co-operative summer camp and retreat center in southwestern Michigan where Kari and I met many years ago.

Professional

I am a mathematics teacher at Hathaway Brown School in Shaker Heights, Ohio.

I have been teaching high school mathematics and computer science since 1990. During this time, I have focused on the integration of computer technology and symbolic manipulators into the high school curriculum. A number of the resources I use or have developed are publicly available.

I have been a presenter at various mathematics education conferences.  You can find here links to materials from the presentations.  The links below take you to conference sites.

• The Technology, Teaching, and Learning Institute in Sydney, Australia
• The Exeter Mathematics and Technology Conference in Exeter, New Hampshire
• The USACAS conference
• National Council of Teachers of Mathematics
• Ohio Council of Teachers of Mathematics

My C.V. contains a partial listing of conferences, papers, and the like.