Subtraction: Quick Tips and Alternative Techniques for Math Mastery, Grades 1-3  (Math Phonics series)
During the past 27 years, Marilyn Hein has taught junior  high school math and nursery school, worked as a substitute teacher  for K-8 and as a class aid in grades 2-4, and with the help of her  husband, Joe, raised six children.  She has enjoyed organized  activities with La Leche League, 4-H, Girl Scouts, Boy Scouts,  Catholic Youth Organization and several political action committees.  Her hobbies include reading and music.