Monthly Archives: July 2011

Rate of Change without the S-word

Posted on July 30, 2011 by jrh794

A senior capstone presentation on  Oregon math standards for rate of change and slope got me thinking.  At the end of the talk I commented that the concept of rate of change is not dependent on the concept of slope … Continue reading →

Posted in Curriculum, Pedagogy, Teaching | Leave a comment

“What Did the Zero Say to the Eight?” and Others

Posted on July 27, 2011 by jrh794

Someone got to this site using the question “What did zero say to the eight?”  I have no idea how or why.  In order to retrofit history, here is the answer to that question and others that I made up … Continue reading →

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Killing Time Taking Square Roots

Posted on July 15, 2011 by jrh794

My attention was wandering at some meeting or other so I started taking the square root of 6 by hand.  Nothing like an arithmetic algorithm to occupy empty time and keep me calm.  I chose six because it gave me … Continue reading →

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A Linearity Survey – Will It Work?

Posted on July 7, 2011 by jrh794

I know my students have trouble with deciding which operations are linear and which operations are not linear.  I am thinking about using a survey like the one on fractions that I have described here.  Here is a possible worksheet. … Continue reading →

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