This Professor Can 'Spit a 16' and Then Find Its Square Root

Kelvin Ma for The Chronicle

Peter Plourde, also known as Lyrical, is an accomplished Boston-area rapper with a surprising day job: He teaches mathematics at Northeastern U. and other local colleges.
October 30, 2011 Premium content for subscribers. Subscribe Today

It is safe to say that few members of the math faculty get asked the kind of question that Peter M. Plourde did at the start of a recent algebra class here at Northeastern University.

"Plourde," a student, Behailu Abreha, said, "who's better...

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