I’m so glad to have found him. He helped my daughter on her high school AP Math and AP Chemistry. Since then my daughter grade have improved tremendously. Thank you so much!!!
Ann
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About the Author: Chi Young Ji
Director of IC Math & Science in Fullerton, CA. Teaches AP Biology, AP Chemistry, and SAT Math. 20+ years of teaching. M.A. in Education (Biola University), B.S. in Biochemistry (UCLA).
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