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[math-learn] Re: Transforming formulas
Posted:
Feb 1, 2007 3:21 PM
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--- In math-learn@yahoogroups.com, "elkashish" <forums@...> wrote:
>
>
> Here's a concise explanation of the FOIL method
> http://www.lessonplanspage.com/MathMultiplyingBinomialsWithFOIL812.htm
Thanks! Now I understand what you call "FOIL".
In Croatia we don't have such shortcuts. In this method I would say
that we multiplay each from the first parentheses by each from the
second one. Or, more briefly, "we multiply each by each".
Of course, these descriptions are not precisly (they don't explain
exactly what "each" means), but kids don't have problems after
exercising and like to use description "multiply each to each".
Antonija
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