Keywords: Mr. James Perna, Bronx High School of Science.jpg Uploaded with en wp UW marker 2013 02 05 Picture was taken shortly after Mr Perna's reader reflection titled A Note on Arc Length was published in the National Council of Teachers of Mathematics December 2012/January 2013 issue of Mathematics Teacher own 2013-01-05 CoPernacus cc-zero Bronx High School of Science |