Apr 13

I asked my calculus students to read this xkcd strip from http://xkcd.com/872/

Fairy Tales

Then I asked them:

a) What is $\lim_{x\rightarrow \infty} (x )$?
b) Explain what might have been weird about the $\lim_{x\rightarrow \infty} (x )$ little pigs.

Mar 16

In this FoxTrot strip Jason is “helping” Paige do her homework without even looking in the book.  He claims the answer to question 36 is lim_{x \rightarrow \infty} \frac{x+2}{x-2}.

I asked my students to evaluate this limit, but think this wasn’t a very good use of the comic strip.  If you have a better idea, please comment or email me.


(If the link doesn’t work try going to  http://www.amureprints.com/reprints/sphinx_search , entering the keyword “question” and checking the FoxTrot box.  It was the first hit when I used this search.  The fact that it is from September 13, 2001    may also help you find it.)

Feb 26

Here’s a question I asked my students about limits using http://www.xkcd.com/103/:

Moral Relativity

1) Using the graph in the comic strip, find

\lim_{speed  \rightarrow c} Rationalization.

2) Write one or two complete sentences explaining what the limit I just had you compute has to do with the text of the comic strip.

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