Specific Purpose: To entertain and inspire my audience by honoring a special professor and describing the impact she has had on my life. Central Idea: Tina Hearne the Biology professor influenced many aspects of my life by showing examples of warmth, courage, and concern for others. Introduction 1. A. (Attention-getter) Who has had the greatest influence on your life? For many of us, a special professor probably comes to mind. B. (Credibility) Throughout my career as a student, many professors have come and gone and have been loved and hated, but none has had a greater impact then Mrs. Tina Hearne, my Biology teacher. C. (Reveal Topic) Certainly, all of us have had professors who evoked strong emotions in us, both positive and negative.