Lori "Mathhead" Johnson Morse <lorima...@gmail.com>
4/28/14
to me, Joseph--"Learning, Living and Loving mathematics.."- the core of Don's teaching and books, observed by Seth Nielson.Donald Cohen1905 S. Prairie Winds Dr. Apt. 204Urbana, IL 61802Tel. 217-840-4559
Email: doncohe...@gmail.com
Don's Mathman website URL: http://www.mathman.bizSee Don's new clickable A Map to Calculus with student works and sample problems from Don's books at every node