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Plotting a graph is mostly helpful.

 

 

Plotting curves is considered to be Too Much Work these days.

 

 

Just what I said. I ask students to plot graphs, and it is as if I had asked them to change one of the inner tires on a loaded tractor-trailer rig. In principle they know what needs to be done, but they seem to have done very little of it, and it is obviously a major imposition on my part to ask for it.

 

I blame graphing calculators and an excessive dependence on Excel.

 

It's sad, but in a way I'm kind of glad it's not just me who's seeing this. Last week I had my students perform the same simple experiment at three different temperatures (ice water, room temperature, near-boiling) and time the reaction to see how long it took.  Then I asked them to plot those three--three!--data points and draw a rough curve, then use that curve to predict how long the reaction would take at 50ºC.  Less than a quarter of them proved able to do that successfully.  These weren't my Honors students, but still.  That's pathetic.

 

/gripe

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