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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 …

Put The FOIL In The Recycle Bin, Please

Jose Vilson Mr. Vilson 5 Comments

That’s it. I’m done with FOIL. Now and possibly forever, unless someone like Alfie Kohn or JD tells me otherwise. At first I didn’t have a horse in the race. I mean, who cares so long as kids can multiply binomials right? If they get it one way or another way, then they’ll get it and that’s great. So what prompted me to dump it altogether? After school, two of …