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Another Reason I Don’t Like FOIL In Math

Jose Vilson Mr. Vilson 12 Comments

I recently wrote an article for Edutopia about factoring polynomials using areas and why FOIL is absolute crap: For one, I’m not a fan of FOIL (first-outside-inside-last) for a plethora of reasons. While I think it’s handy to have an acronym that reminds students of a procedure, it only works in a very special case. In this case, FOIL works only for multiplying a binomial by another binomial. Does FOIL …