Hello students and language learners! I'm Christopher, a credentialed California teacher and test-prep tutor. I've taught middle school and high school biology and physiology in the San Francisco Bay Area, and for the last 4 years I've tutored for the SAT and TOEFL exams and have taught English in the South Korean cities of Seoul and Changwon. My passion is to help high school students prepare themselves for, and get admitted to, college. Don't worry, I have adult students, too!