Last summer, the NCTM Research Committee asked members to identify grand challenges in mathematics education (written about here and here),

New game! My Algebra 2 students struggle with stating the domain and range for reasons including: trouble understanding and writing inequali

I'm teaching exponential functions and logarithms in pre-calc right now. That means it's time to pull out my murder mystery, in which they w

All week I've been watching my students' geogebra assignments progress by watching successive versions of them pop up in their epearl portfo

Make sense of problems and persevere in solving them Construct viable arguments and critique the reasoning of others Attend to precision The

This mathagogy video has generated some behind-the-scenes discussion in recent months. http://vimeo.com/67428694 This week, I got a note fro

Here is one of my favourite excerpts from Diane Ravitch's new book Reign of Error. Ravitch nails it by identifying the problems that are pla

We have been making some progress on the Nix the Tricks project. It's by no means done, but steps have been taken in the forward direction.

A few months ago, I sat down with pad and paper and started looking for some math. It was an open-ended investigation that didn't really sta

In his controversial post criticizing high school algebra, Grant Wiggins issued a challenge to his readers: Can you identify 4 big ideas in

I went to Steve Leinwand's global math presentation this week. It was thought-provoking and worth the time. You should go watch it. I asked

I wrote my post asking administrators to inspire us back to school simply because of my own hopes and dreams. I wrote it in the hopes that i

There is a very strong emphasis on linear relations and functions in the junior maths in my province. In Grade 9, students begin by analyzin

This is cross-posted at Educating Grace. First, this post was co-written with Grace and heavily influenced by a post by Dr. Isis and one by

Hi Everyone,I present, for your planning pleasure, portions of my Geometry Standards and around 30 Geometry Assessments that I used last yea

It has long been clear to me that there are important skills of interdependence that I value in mathematical group work, but I have always b

I have completed the first four days of the Cognitive CoachingSM Seminar (CCS), and I am still in the process of consolidating my understand

This is a fun game to while away the midweek blues. You're presented with two dots. You can drag between dots to create lines and circles, a

I am very proud of my students, Ahmed and Jason, who presented their peer-to-peer math enrichment program MathMatters! at this year's TEDxNY