Our Tutors

Nat Crawford

Nat Crawford is the President of Improve Your English. He received his BA in English Literature from The University of Chicago and his MA at Stanford University. For four years, he taught writing and Honors English at an elite preparatory school in Los Altos. As a tutor, he has helped students develop better writing skills, improve scores on standardized tests, and earn admission to Harvard, Wesleyan, Caltech, and MIT, among other schools.

Teresa Kim

Teresa Kim is a supervising tutor at Improve Your English and an English graduate of Stanford University, where she was a presidential scholar and a peer writing tutor. At Improve Your English, she has helped students improve their SAT scores, receive National Merit Scholarships, and qualify for gifted youth programs hosted by John’s Hopkins and Duke.

Ann Hillesland

Ann Hillesland has a BA in English with highest honors from UC Berkeley as well as a Masters of Fine Arts in creative writing from Queens University of Charlotte. As a writing tutor and teacher, she has taught students everything from basic grammar to college essay composition to creative writing. She has written for some of Silicon Valley's top companies and many national literary magazines.

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Dr. Mary Lynn Wilson

Dr. Mary Lynn Wilson graduated from the University of California, Santa Cruz with a double major in English and History. She holds both an MA in Medieval European History and a PhD in Indo-European Studies from UCLA. She is a lecturer at San Jose State University, where she has taught mandatory junior-level writing courses for ten years. Dr. Wilson has studied 13 languages, including French, German, Latin, and Sanskrit.

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Artie Moffa

Arthur Moffa majored in English and graduated with high honors from Amherst College, one of the most selective schools in the country. He worked as an Admission Dean for Amherst before moving to Europe, where he tutored ESL to Chinese expats and refugees. Including his time at Improve Your English, Arthur has over ten years of experience tutoring one-on-one in English language, as well as helping business executives in business marketing and communications. He is a published and prize-winning poet, having lectured or given writing workshops at Amherst, Hampshire College, Smith College, Emerson College, Brandeis University, and James Madison University, as well as at over a dozen high schools.

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Judy Wendel

Judy Wendel graduated from U.C. Berkeley with a B.A. in English Literature. After obtaining two teaching credentials, she went on to graduate study in English, in education, and in ancient languages and literature. Her experience includes private schools, public schools, supplemental education, and homeschools. She has taught reading comprehension, literary analysis, grammar, writing, and the structure of language to all ages, including adults. She has additional expertise in Gifted Education and in the writing aspects of college admissions, having also worked independently as a college admissions counselor.

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Jeannie Stokes-Cobb

Jeannie Stokes-Cobb has taught English and English as a Second Language in K-12 and adult schools for twelve years. Her work in Alameda County led to a nomination for the county's Teacher of Excellence award. In addition to advanced degrees in education, she holds a B.A. in English from Stanford University. She is currently an English Instructor at San Jose City College and Mission College, where she teaches developmental reading/writing and critical reading courses. Jeannie holds ten adult teaching credentials, including English and English as a Second Language.

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Daniel Hoshizaki

Daniel Hoshizaki received his B.A. in English from Santa Clara University. He has several years of experience with assisting students at the elementary, middle, and high school levels while helping them make significant strides in enriching their literacy and comprehension skills. His life-long love of reading and writing, supplemented by the study of literature in college, has given him a passion to impart a similarly ardent appreciation to others. His dedication, along with superb organization in lesson preparation and progression, inspires students to strive for excellence.

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Margaret Marshall

A graduate of San Jose State University, Margaret Marshall is a credentialed teacher with a Masters in Education. She has 14 years of English tutoring experience, including several years of classroom teaching experience with schools in Menlo Park, Redwood City, and San Jose. She has edited five books and is currently writing one of her own.

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Mirabella Mitchell

Mirabella Mitchell has a bachelor's degree in English from Princeton University and an MFA in creative writing from the University of Virginia. She taught college-level composition and creative writing at UVA, where she also worked as a writing tutor for undergraduate and graduate students. Now an SAT and English tutor, she focuses on building critical thinking and writing skills. Her own writing has received numerous awards and been published in several literary magazines.

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David McCalmon

David McCalmon earned a B.A. with a double major in modernist literature and American history from U.C. Santa Cruz, from which he graduated with honors. He began his ten years of work in education by teaching U.S. history in college classrooms, where he often transformed ‘C’ students into ‘A’ students. He is currently in the process of writing and editing several novels in preparation for publication. Since 2012, he has tutored elementary and middle school children, with a particular emphasis on encouraging an early appreciation of classic and world literature.

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