Sunday, October 4, 2015

Are you Smarter than a Fourth Grader?

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.   

 Image result for order of math operations 
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.



Image result for order of math operations

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.










4 comments:

  1. Very interesting! I agree - even only being out of high school for less than a year, I already look at my younger sister's homework in confusion. I am in complicated math courses, but simple algebra can stump me. Do you see this trend in any other subjects?

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    1. Most of the students I have worked with need help with spelling and basic elementary math so fortunately no trends (although this one threw me). I find most are nervous and just need someone to help them work through the problems but have the basic knowledge. Funny what details we take for granted as we get older

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  2. I'm so glad you had the opportunity to learn this valuable mnemonic device that got me through grades 4-12! I was wondering, you said one student seemed a bit more studious while the other was outgoing. Did you notice the studious one helping the other one or the extrovert bringing his friend out of his shell?

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    1. I actually separated them on purpose (by sitting between them) since they were friends. The issue was keeping them both on task and on the same problem. Believe it or not the comedian was completing the problems faster and so his jokes allowed the quiet one time to catch up. I find that more often than not I am amazed at how hard these older students work.

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