Monthly Archives: October 2011

Two-Column Proofs Should be Three-Column Proofs

Two-column proofs, written as statement/reason, do not represent valid deductive thought.  They should be thrown out of the math curriculum. A valid deduction is supposed to follow these lines: a is true. a –> b is true because of a … Continue reading

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Follow My Classes…

If you’re interested in following my classes… Computer Science: Geometry: My goal is to make all of my materials public…for my students, as well as for other teachers.                     … Continue reading

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Taking a minute to slow down…

Sometimes, teaching feels like an Aaron Sorkin film/television show.  There’s a lot of walking and talking, and the day goes by lightning fast. This makes it extra important to slow down and reflect every now and then.  One of my … Continue reading

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