> 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".