Many thanks to Miss Hall's School in Pittsfield, Massachusetts for their support of this site.
This web site got started when I taught there, from 1999 to 2008.

# ONE MATHEMATICAL CAT, PLEASE! A First Course in Algebra

$\,x\,$ is to mathematics as ‘cat’ is to English.
faced with $\,x\,$, you'll think:
and laugh a bit $\ldots\,$