>>Also, simply posting a conversion chart between fractions and decimals >could >>accomplish the same purpose.
>No, actually it would not. The students begin to recognize the "patterns >of conversion".
Not sure if you mean that students recognize the patterns using a calculator or via reference to a poster. Don't underestimate the power of posters! I didn't mean to imply that simply putting up the poster would teach the child.
If you can display it on a calculator, then you can display it on a poster.