slide rule for grade level:
               ,  4th to 5th, 



   

 
Fill in boxes then press either the      , or      , to get result.  
Be sure to look at result on slide rule.


use CI scale -> use C scale -> use CI scale -> use C scale ->                                  
                
 
*you can move the slide and cursor with the mouse too!














   
last update 4/28/08 9pm
 also check out the
NEW Kid's Rule! Windows Application
A very special thanks to the following people:
Derek Ross at  http://www.antiquark.com  for his contribution and inspiration!
Walter Zorn at