Thursday, January 19, 2006

A "Major Phelps" Moment

The first semester of my junior year I was an exchange cadet at the Air Force Academy in Colorado Springs. There were 6 of us from West Point, 6 from Navy, 3 from Coast Guard, and (I think) 6 from the French Air Force Academy who were exchange cadets in the fall of 1985. I had applied to Air Force while a senior in high school but had never received an official letter of declination, so I viewed my goal as an exchange cadet to "see what I missed and show them what they missed."

One of my courses that semester was electrical engineering, taught by Major Phelps. "Phelpsie", as he was sarcastically-affectionately known (like calling a huge guy 'Tiny'), was an extremely competent instructor. He wasn't so personable, but he was a good man. Going in his favor was the fact that he seemed--well, if not biasedtoward, then he at least enjoyed having in his class two West Point exchange cadets.

Major Phelps was tough. He taught a rigorous subject to rigorous standards. His tests could be brutal.

There weren't more than 15 or so of us in the class, and after several attempts at whining and persuasion we won a huge concession from Phelpsie--on the next test, he'd allow us to use a "cheat sheet", a note card with whatever we wanted written on it. We were limited in size to one 5"x8" notecard. This was big--no memorizing formulas this time!

The night before the test I was going through the chapter, making my notecard. I subscribed to the views of the ancient Chinese philosopher Sun-Tzu: know your enemy, and know yourself. Rather than just copying formulas I actually was copying example problems from the book--complete with the explanations for each step. No way would Phelpsie be able to slip one by me now!

I came across one example problem in particular. It was similar to others we had done, but there was a curve ball in it. Phelpsie had mentioned it briefly in class when we had covered that section but that was it. We'd had no homework problems like it, no quiz problems. I knew my enemy, I knew Major Phelps would take that problem and just change the numbers. I copied the example word for word.

After the tests were handed out, you could tell when everyone got to whatever problem it was. There were audible moans. No one could figure out how to do it. No one, that is, except for the one person in class clever and/or lucky enough to have copied a certain example problem from the chapter. You see, Phelpsie didn't even change the numbers :-)

I got the high score in the class on that test--90%. The next highest score was 70%. They went downhill from there. By the next class period Major Phelps had already heard through the grapevine that I had that exact problem on my notecard, and he seemed rather to enjoy letting me know that he knew. He also seemed to enjoy holding it over the heads of the other cadets--If you want to use a notecard, you need to be prepared for harder tests....

Why do I tell this story now? Because during my 6th period trig final today I was wandering the class, offering reassurance to students and answering questions. One girl said with glee, "I have this exact problem on my notecard!" I wonder if she had the other one, too. You see, I lifted two example problems from the text for use on the final exam.

Know your enemy :-)

7 comments:

Mike T said...

I know the enemy and he is you!

90%...talk about blow the curve!

Back at the engineering school at the University of No Opportunity, aka New Orleans, you'd be looking over your shoulder for a few weeks! :)

rightwingprof said...

About three years ago, the night before the midterm, we found out that one of our colleagues had put apostrophes in front of all the formulas and functions in one of the Excel problems from class (this will show the function, and not the result), printed it, and given it to his students as a study guide.

One of the problems on the midterm was almost exactly the same -- so we had to change the problem. The night before.

Anonymous said...

On my cheat sheet i wrote down a problem out of the book line by line and low and behold it was on the final. I think it was the domain of a composite function. Great story by the way.

Chris T

Anonymous said...

Darren,

How I remember those days of college & the really brutal testers allowing "cheat sheets". My enemy taught diffie calc :)

How about teaching a class though where just to pass an "easy" (read: simplistic) exam the students had a cheat sheet and the avg score was still far too low. This year I'm teaching sophomore algebra & have had to "review", actually go back and teach:signed numbers, multiplication, order of operations, operations with simple fractions ... essentially redo their knowledge of middle school math. I'm alternating teaching them the Algebra II curriculum with teaching middle school math. So, cheat sheets don't really work, they have little underlying knowledge to build upon.

Ah, that felt good. Thanks for allowing a mini-rant :)

Darren said...

That was a rant???

graycie said...

I have a student this year who will come into a test and keep a blank sheet of paper on her desk. When the test begins, she immediately writes the entire study guide and all of its info onthe blank sheet -- from memory. Then she can relax about the info and just take the test. Amazing.

Darren said...

If she can memorize a study guide, why not memorize what she's supposed to learn?!