Content Description Collection contains the professional papers of Professor David Henderson, including mathematical paper reprints and original notes; course materials (exam tutorial calculus, Math 451 and Math 454); VHS tapes with recordings of 12 lectures of Math 451 (fall 1988), recordings of the June 1996 workshop for university professors about teaching geometry based on Math 451 and Henderson's book Experiencing Geometry; video interview with Henderson, February 5, 1990, about Math 451; and other...