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Monthly Archives: November 2011
Test Instructions
A student in my intermediate algebra class suggested this improvement to my tests – Put more written instructions on it. My tests tend to be austere. For example, I might say “Simplify” followed by ten problems or more like or … Continue reading
Posted in Classroom Happenings, Pedagogy, Teaching
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Volumes of Rotation as Double Integrals
Yesterday one of our math tutors, Christian Paterson, who was helping both Calc I and Calc IV students asked me if it was possible to find a volume of rotation using a double integral. I flippantly said yes. We independently … Continue reading
Posted in Math Explorations
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How To Be a Wizard – In Ancient Egypt
A thought experiment: What if a college student was transported to the time of King A-user-Re (See note 1)? What skills and knowledge would such a person have that would be seen as wizardry by the ancient Egyptians? Let’s do … Continue reading
Posted in Rants
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Algebra in Practice
The steps we teach in our algebra courses are not the same steps that skilled practitioner use. I have already alluded to the utility of “criss-cross applesauce” when adding and subtracting fractional expressions and how to solve proportion problems quickly. … Continue reading
Mountain Bike Inflection Points
I rode my mountain bike up to Bull Gap last Sunday. The ride is about ten miles with a fairly steady climb of around 3000 feet. After a few miles I started to get impatient. I wanted to arrive at … Continue reading
Posted in Math and Me, Math Explorations
Tagged calculus, inflection points, mountain bikes
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Word Clouds – Analyzing My Writing Quirks and Topics
A glimpse of a word cloud in Time magazine has resulted in this attempt to understand my prose. I used Wordle to produce the images below. First a few comments. Wordle is capable of making beautiful word clouds with an … Continue reading
Posted in Cool Ideas, Curriculum, Math and Me, Pedagogy
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