A lot of my precalculus students today didn’t like and/or didn’t believe Cantor’s proofs of the denumerability of the rationals and the non-denumerability of the reals. A few articulated their disbelief; most were quiet and attentive, but how many of… Read More ›
Yes, there really is a product called The Algebrator. Their slogan is, “You Type in Your Homework Problem. Algebrator does the Rest!” Here is an excerpt from one of their ads. What’s wrong with this picture?
This week’s New York Times Book Review contains a fascinating Literary Map of Manhattan, preceded by an explanatory article written by Ethicist Randy Cohen. Quoting Meg Wolitzer, Cohen defines his (their?) “cartographic motto”: a strong sense of specificity, even though… Read More ›
Perhaps a Venn Diagram would help.
Do check out the NCES Students’ Classroom site. Good stuff — even though a lot of it is in Comic Sans (see yesterday’s post).