"If others would but reflect on mathematical truths as deeply and as continuously as I have, they would make my discoveries." - Carl Friedrich Gauss
March 19, 2015
Over the past few years of teaching precalculus regularly, I’ve experimented with a variety of approaches to rational functions in an attempt to find one that will result in students discovering and eventually truly understanding how the equation of a rational function determines its graph. I have never felt very Read more…
August 14, 2012
Starting with a tweet yesterday from John Golden (@mathhombre) How to Insert an iFrame into a WordPress Post bit.ly/OUZn3q for @geogebra, ggl docs, etc. #edtech HT @mike_geogebra — John Golden (@mathhombre) August 13, 2012 I followed a trail which (thanks to a comment from Pete Read more…
July 21, 2012
After re-reading the first chapter of Eli Maor’s e: The Story of a Number, I ended up spending a couple of days creating a GeoGebra applet which I’ve called Napier’s Gift. Given that it’s July, I didn’t have a class to try it out on, Read more…
August 27, 2011
The data for this graph comes from Table 053-0001 at Statistics Canada. The graph was produced with GeoGebra.
August 9, 2011
The data for this graph comes from Lake Superior Meteorological Buoy at the University of Minnesota-Duluth. The data was gathered at 5:00 AM on July 28, 2011. Similar data, along with an interactive graphing view, are available for many other dates back to 2008. The Read more…