Category: whiteboards

My Favourite Surface Area Question

Surface area is intuitive. Intuition is a natural hook into curiosity. When you think something might (or should) be the case, it begs the question, why? It just seems as though textbooks haven’t gotten wind of that.Perusing the surface area chapter of the assigned textbook for my Grade 9 math class offers a steady diet …

The Review Day: Unit Analysis and Scale Factor

There seems to be three sacred cows in mathematics education: the worksheet / exercise set the review day the exam It is not surprising that these three feed off one another, and make up the bulk of assessment in the typical mathematics classroom (including my own). Here’s my disclaimer:While I have been known to slaughter a …

Large Whiteboard Project

Group whiteboarding has changed how I teach mathematics. It has also changed how students operate as a community of mathematicians.  Since ordering my first set of large whiteboards, our department has ordered four times again, and given workshops to the division’s mathematics teachers. (For a tour through my whiteboarding history, start here: mini whiteboards) My …

The Discourse Effect

This semester, I’ve been attempting to infuse my courses with more opportunities for students to collaborate while solving problems. This post is designed to examine the shift in student disposition throughout the process.I have noticed an increased conceptual understanding almost across the board and this is reflected in the differing solutions on summative assessments. It …

Creating Communities of Discourse: Large Whiteboards

I have talked about individual whiteboards on this blog before. My school bought me supplies and I was loving the various classroom activities. While the grouping questions facilitated good mathematical talk between peers, I was still searching for a method to encourage more collegiality where my role could diminish to interested onlooker or curious participant.  …

My Whiteboarding Framework

This year my department decided to make using whiteboards as formative assessment tools our department focus. This was nice because I had already began to experiment with the process. It just meant that: I wasn’t obligated to try yet another “thing” in my room. I would be given better materials and funding to work with. …

Gummy Bear Revisited

The giant gummy bear problem has been floating around the blogosphere for a while. When I first saw it, I knew I wanted to use it. I finally have the perfect opportunity in Foundations of Mathematics 20 this year. (Saskatchewan Curriculum). History of the Problem (As far as I know) Originally presented by Dan Anderson …