This is another post about sessions I attended last weekend at the Asilomar Northern California CMC conference. (To read the whole set, start here.)Kevin Rees presented two variations on a classic volume optimization problem. In the traditional problem, you start with a square piece of cardboard, cut off congruent squares at the four corners, and… Continue reading The third dimension!
Tag: Trigonometry
Kinesthetic Radians
(Previous kinesthetic posts: Pascal's Triangle, Graphing, Distance.)If radians are introduced strictly with a formula, the meaning of the word is difficult to grasp for many students. Some years ago, I learned two tricks from a colleague, which I'll share here:- Tell students that "radian" is short for "radius angle".- A one-minute kinesthetic activity: ask students… Continue reading Kinesthetic Radians
Small Changes
In part as preparation for my summer workshops, I've been making small changes here and there:- updated many references to the site's address to MathEducationPage.org- added a document that outlines a suggested sequencing for Lab Gear lessons- added a construction challenge to Geometry of the Parabola- added a reference to Keith Weber's excellent article "Teaching… Continue reading Small Changes
Henri's Math Education Blog 