Madi2 Madi3 David Hartman, Ph.D. Mathematics Department Waverly High School 402.786.2765 email: David.Hartman@district145.org website: drdhartman.com This is my 6th year at Waverly High School! I have absolutely loved working with WHS students the past five years! During my first 20 years in education, I spent 13 years at Lincoln Southwest High School…