Monthly Archives: September 2009

When Sketchpad is Wrong

Posted on September 28, 2009 by Jackie

Last week we went into the lab to play do an investigation with Sketchpad. The task was to create various polygons, measure the angles in each, and calculate the sum of the interior angles. They were then to formulate a … Continue reading →

Posted in General | 5 Comments

Formative Assessment?

Posted on September 27, 2009 by Jackie

We were recently going to do an activity that involved finding the formula for the sum of the interior angles in a polygon. This required that they know that a few terms beforehand. I wanted a quick way to check … Continue reading →

Posted in Math, teaching | 10 Comments