The FOIL method is
not really bad for teaching multiplication of two binomials as long as it is derived from applying the distributive law or more officially known as the Distributive Property
(over addition or subtraction).
The
FOIL method is a mnemonic for First term, Outer term, Inner Term, Last term. It
means multiply the first terms of the factors, then the outer terms, then the
inner terms and the last terms. I would suggest the following sequence of
examples before the teacher introduces product of two binomials:
Simplify the following expressions
1. 3(2x-1)
2. 3x(2x-1)
3. -3x(2x-1)
4. (x+3)(2x-1)
Play the video for complete description
of how to teach this with meaning.
I am using FOIL method in multiplying binomials. At first, I am confused what is FOIL means? How can you determine if is the first, outer, inner and last terms? But instead of complaining, i keep on practicing until i get the procedure.
TumugonBurahinThis is great, if you are getting a hardtime in memorizing. Once you know that you can multiply binomials by simply applying the distributive law, you don't need to memorize what FOIL means. But if you want to make your solutions short, use the foil method instead.
TumugonBurahinWhy do we keep on making math hard if we can make it simple? All we need is more practice. Knowing the FOIL method in multiplying binomials makes my solving simple, I don't need to use the distributive law at all. Once i know the rule in using FOIL method and more practice with it, I can surely get a high score in an exam.
TumugonBurahinSeriously? I don't know that FOIL method is simply the distributive law. I remember my high school days when I keep on memorizing what is the meaning of FOIL, but if i know that it is simply the distributive law maybe i can get a high score that time.
TumugonBurahinI am having a hard-time in memorizing, but using foil method instead of the distributive law makes my math simple. In math, practice is the key to success.
TumugonBurahinThank you Ma'am Donna for this blog, i really don't know that FOIL method is just the distributive law. I am using FOIL method ever since, but I didn't have a hard time because i keep on practicing this method in multiplying binomials.
TumugonBurahinMathematics is not that actually hard, there are some topics that are surely easy, like this one. Multiplying binomials is hard at first but using FOIL method makes it easier. It's easy if you know the rules, and have a lot of practice. In mathematics your number one enemy is the time, that's why I am using FOIL method instead of the distributive law because this method makes your solving easy and short.
TumugonBurahin