Income and Debt with ZeroSum Ruler July 10, 2011

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One of the ZeroSum ruler’s main purposes is to calculate debt/income problems.   In the problem “I owe you $12 and pay you back just $7. How much do I still owe you?” how do you come to your answer?   Do you count backwards from $12 to $7?   Or do you count forwards from $7 to $12?   No really, how much do I owe you?   How did you figure this out?    The ZeroSum ruler allows the student to count forwards instead of backwards just like we do in real life!    So why do we make our kids count backwards in school?

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Have an idea? Write an Ezine Article! April 12, 2011

It’s exciting to be published!  Now, Ezine makes this process even easier.  Ezine literally takes articles written on anything.  Below is an article about the ZeroSum ruler… you can click on the text for the full article and to get to Ezine’s website to write your own article!