By Bobbi Lin
This is a little embarrassing but let me say I will not
be appearing on any game show testing my knowledge against any fourth or fifth graders. Let’s just say I am happy to have access to my
cell phone at times during the Homework Help visits at the Village Public
Library.
While most of the time I have helped first and second
graders with spelling homework consisting of repeatedly writing the words (once with
pen, then pencil, then marker) but there has been a few occasions that make me doubt
my own knowledge.
On a recent visit I was tag teamed with two young men
in the same class with math homework. Normally we help one child at a time but
these two wanted to work together and with so many waiting it seemed like a
good idea. One student was loud and
funny and I would bet is the class clown as I heard a series of jokes in between problems.
The other was quiet and quite the future mathematician. I was amazed when he multiplied twenty-seven
by fifth-six in his head correctly but then reminded of his need for help when he guessed
at seven times four.
This homework
consisted on problems involving order of operations. At times, I freely admit I doubted myself
especially when these two students came up with different answers.
The quiet
student kept saying "Please Excuse My Dear Aunt Sally”. Was it a private joke? Nervous chant? The loud student kept speaking in Spanish and
singing “PEMDAS” in different voices. After
hearing this repeatedly for about 10 minutes, I finally decided to google pemdas
and see what all the giggles were about hoping I could bring his attention back around.
Well much to my relief this is a technique
teachers use to help students remember the order of operations.
It stands for
"Parentheses, Exponents, Multiplication and Division, and Addition and
Subtraction".
Now I am older than most students (and some
professors) and it has been some 30 plus years since I was taught about order of
operations. To be honest I don’t even
remember learning about this but I sure Aunt Sally was not involved.
I have to admit I was just glad to have the refresher and to know the students were not just playing around but honestly attempting
to think through the problems.
Thank you Aunt Sally.