Mark Woodrow was a calculus teacher who helped the author greatly in high school and made college calculus easy to learn. He cared about his students and improved the author's math skills while also teaching soft skills like patience, dedication, and working towards goals. These lessons helped shape the author's life by making him more motivated, happy, and confident, with the ability to help others. Today, the author has a closer relationship with his family and friends, stronger religious beliefs, and has learned important skills and leadership qualities from Mr. Woodrow.