Don't you hate it when your own idiocy is thrown in your face like a glass of ice water? I know I do. I had one such "moronic moment" yesterday evening when my sister, who just started college to become a nurse, phoned me and asked, "Can you help me with this math problem?"
Now, I consider myself to be reasonably intelligent. I did well in school--a little better in English than in Math, but I still managed to pull A's and B's in the math classes I took in high school. (Nevermind the fact that it's been almost 11 years since I graduated--am I really THAT old?) So imagine my disappointment when I had to consult Math.com to remember what I learned about "combining like terms".
Here's the sad part: I looked it up, and I STILL couldn't come up with the right answer. Thank goodness my husband who majored in English and History was here. It is also fortunate that our father is an engineer (she also placed a call to him about the same problem), and I think from now on he should be the first person on her "Who To Call With A Math Emergency" phone list.
While she was checking her answer with "Dad the Engineer", I began to list all of the things I CAN do with math in my capacity of "domestic engineer".
- I am able to keep a running total in my head of the approximate price of groceries in the cart. (Addition and Rounding.)
- I can figure the approximate cost of any particular dish based on the the amounts of ingredients it contains. (Estimation.)
- I can figure out how long to roast meat based on the weight of the cut. (Multiplication.)
- I know that it takes 2 cups of water to 1 cup of rice. (Ratios.)
- I can triple a recipe in my head. (Proportions.)
- I am able to measure a room and come up with the square footage of that room. (Area.)
- I do the "banking" at our house, and we are NEVER late on any bills, and have not overdrawn on our account since we've been married. (Subtraction.)
I was still feeling sorry for myself, even though I DO use math (albeit basic math) on a daily basis. I talked to Mama about this, and after awhile, I began to realize that I was feeling sorry for the wrong person. I shouldn't feel bad that I can't remember how to combine like terms...the person who is really unfortunate is my sister, who has to make room in her brain for information that I have officially deemed...
USELESS.
I invite any engineers, nurses, and those of you in any other professions who know how to combine like terms to leave a comment on how you, personally, use this in your professional or personal life. (I'm guessing that 90% of what you learned in math is less than relevant, and that's putting it nicely.) Prove me wrong.
Heading off to make a pot of minestrone (my version of combining like terms--and it tastes better than paper and ink),
Gina