Date: Oct 23, 2012 10:40 AM
Author: Dave L. Renfro
Subject: Re: Why?

Robert Hansen wrote:

> Why is the attached page in a 4th grade math text?
> Teaching algebra in 4th grade IS NOT the path to algebra.
> Teaching arithmetic in 4th grade IS the path to algebra.

4th grade seems a little early to me. I think 6th grade
would be more appropriate for something like this. Also,
I think I'd omit explicitly defining and using the word
"variable", and I KNOW I'd omit defining and using the
phrase "algebraic expression".

Dave L. Renfro