Tag Archives: Dynamic Geometry

What Constitutes Malpractice?

Two months ago I was in a meeting with a nationally recognized leader in math education when he said, “Any math teacher who does not use technology with students is committing malpractice.” Now, I have been a strong advocate for the use of technology tools in instruction since I started teaching in 1993. But, I … Continue Reading ››

Reflections, Multiple Representations, and Key

Today I'd like to share my personal story about Key Curriculum Press, a company I've experienced as a classroom teacher, as an editor, and now as a parent. For many weeks now, I've been trying to write a post about some of the dismal trends I see in education right now, but I keep getting bogged … Continue Reading ››

Eat Your Vegetables! Do Your Math!

I was not a picky eater as a child. My parents had no trouble convincing me to eat my peas, artichokes, and even spinach (in the form of my dad’s delicious Thanksgiving stuffing). But I drew the line at Brussels sprouts. There was just no way for me to get over that cabbagy smell. [caption id="" … Continue Reading ››

Walk Like a Mathematician

Over the weekend, I attended the CMC-North conference at the Asilomar conference grounds. It's my favorite math teacher event of the year.
Photo by Captain Albert E. Theberge, NOAA Corps (retired)
When I was a teacher, the combination of the beautiful, … Continue Reading ››

Classifying shapes into a hierarchy is a 5th grade standard? Really?!

As I recently worked on correlating our materials to the newly released Common Core State Standards, I was surprised to find many of the topics we commonly associate with a high school geometry course placed throughout the standards for elementary grades. I was surprised, but not shocked. In fact, I've believed for a long … Continue Reading ››