Meet Your Team


Below is our team of teachers, tutors and subject matter experts. They hold advanced degrees from some of the world's top universities and have extensive experience helping students pass their credentialing exams. We believe that there is no better team of Praxis, CSET, CBEST, FTCE, edTPA and RICA test prep specialists. While their backgrounds and specialties are diverse, they all have one thing in common: they are knowledgeable, caring and dynamic educators whose goal is to help you succeed.

Mark Samuels

Curriculum Designer: CSET Multiple Subjects and CBEST

Mark Samuels graduated from Hampshire College in 2003 with a B.A. in International Relations. He spent his first two years in Los Angeles tutoring advanced students for the SAT and now specializes in creating materials and strategies to help teaching candidates pass the CSET and CBEST. He has worked in legal support and also contributes non-fiction writing to various online publications. As a diehard Simpsons fan, he will sometimes utilize Mr. Burns' wisdom to help students learn: "Smithers, I've survived two World Wars, a Great Depression and four years of McKinley-nomics."

Barry Mednick, M.S.

Tutor/Grader: CBEST, CSET Multiple Subjects, CSET Mathematics, Praxis Core, Praxis Elementary Education, Praxis Mathematics

Barry has taught at California State University, Fullerton, School of Business and Economics in the Information Systems and Decision Sciences Department and currently teaches mathematics, science and social studies at a private high school in Orange County. He holds a B.S. and M.S. from Columbia University's School of Engineering. He has extensive experience helping students prepare for success on CSET and Praxis exams.

Lena Anthony, M.A.

Lead Curriculum Designer: RICA

Lena Anthony is a literacy coach for Los Angeles Unified School District. She supports elementary school teachers with the implementation of state-adopted language arts programs and ensures that curriculum and instruction are carefully aligned with the CA State Content Standards and also meet the needs of individual students. Lena conducts training for teachers, educational support staff, parents and private tutors. She has substantial expertise in the field of RICA test preparation. Lena received her Masters degree from UCLA.

Khodadad Rezakhani, Ph.D.

Lead Curriculum Designer: CSET Social Science

Khodadad Rezakhani was born in Tehran, Iran and has lived in Iran, Europe and the United States. He obtained his Master of Science in Economic History from the London School of Economics and his Ph.D. in Late Antique History from UCLA. He has many years of experience teaching in England, Iran and the United States, mostly in the subjects of history and languages. He speaks Persian, English, and German and is familiar with several ancient languages. He has extensive expertise in creating curriculum for the CSET Social Science exam.

Jiro Tanaka, Ph.D.

Lead Curriculum Designer: CSET English

Jiro Tanaka received his Ph.D. in German Literature from Princeton in 2002 and his Bachelor's degree from Harvard in 1993. He has taught at Clark University and Vassar College, where he served as Woodrow Wilson Postdoctoral Fellow in the Humanities. In 2008, he was a visiting scholar in UCLA's program for human complex ystems. Jiro has published widely on topics in literary theory, German intellectual history, second language acquisition and "bio-cultural" approaches to the humanities. He has substantial expertise in designing test preparation curriculum for the CSET English exam.

Jeff Wurfel, Ph.D.

Lead Curriculum Designer: CSET Science

Jeff Wurfel received his Ph.D. in Neuroscience and his Masters in Biomedical Engineering from the University of Southern California. His area of research was complex motion perception in the human visual system. He has experience teaching and tutoring mathematics and science at the high school, undergraduate and graduate levels. His broad and extensive background in the sciences, along with his experience in helping students prepare for standardized tests, allows him to bring a unique level of expertise to creating curriculum for the CSET Science exam.

Aditi Mehta Doshi, M.Ed.

Curriculum Designer: CSET Social Science

Aditi Mehta Doshi is a history teacher for the Los Angeles Unified School District. She has over ten years of teaching experience, both at the middle and high school levels. Aditi holds a B.A. in History from Harvard University (2000) and a Masters of Education from UCLA (2003). She has extensive experience developing standards-based curricula, particularly in the field of American history. Aditi has taught and tutored many students of diverse backgrounds, to help them prepare for standardized exams.

Abigail Garcia, M.A.

Curriculum Designer: CSET English

Abigail Garcia taught English at Animo Leadership Charter High School for seven years. She also sat on the Board of Directors for Green Dot Public Schools and served as a member of the Transitional Advisory Committee for Superintendent Tom Torlakson. Abigail earned her Masters in Secondary Education and received her BCLAD credential from Loyola Marymount University. She earned a Bachelor's degree in Political Science and a minor in Spanish from the University of California at Berkeley. Her expertise is in preparing students for all four subtests of the CSET English exam.

Jennifer Eggers, M.Ed.

Curriculum Designer: CSET Science

Jennifer Eggers graduated from the University of California at Irvine with a Bachelor's degree in Biological Sciences. She immediately started the teacher credentialing program at Claremont Graduate University. In Claremont, she received her teaching credential and Master's in Education. Jennifer has taught CSET prep classes at Claremont Graduate for the past five years while also working as a high school biology teacher in the Los Angeles area. Her specialties are CSET Multiple Subject Subtest 2, CSET Single Subject Science Subtests 1 and 2 as well as Biology Subtest 3.

Justin Yaeger, M.A.

Teacher/Tutor/Grader: CSET Social Science

Justin Yaeger was born and raised in the Los Angeles area and graduated from UC Santa Barbara with a B.A. in History. He also has a Single Subject teaching credential in Social Studies/History and a Masters degree in Education from Pepperdine. He has been teaching at the high school level for more than ten years and has taught many subjects in the history curriculum, including US history, AP US history, government and economics. He is also a rater for the writing section of the AP US history exam. Justin specializes in preparing students for all three subtests of the CSET Social Science exam.

Rebecca Franke, M.A.

Curriculum Designer: Social Studies

Rebecca received her Bachelor's Degree in Social Science with an emphasis on South Asia history, politics and economics, then went on to UC Berkeley where she completed her Master's Degree with an emphasis on international relations, comparative politics and Middle East-area studies. Since then she has worked in the private sector and more recently spent several years teaching social studies at the high school level.

Myeasha Pruitt, M.A.

Teacher/Curriculum Designer/Grader: CPACE, CSET Multiple Subjects

Myeasha graduated with a B.A. in Liberal Studies and a M.A. in Administration and Leadership from La Sierra University. She has over ten years' teaching experience in both public and private schools and currently works for the Alvord Unified School District in the cities of Riverside and Corona. She holds clear single subject teaching credentials in English and home economics and a clear multiple subject teaching credential. She also holds a preliminary administrative services credential.

Katherine McLemore

Teacher: CBEST

Katie graduated with a B.A. in Liberal Studies with a mathematics concentration from CSU Long Beach. She is an experienced teacher who holds a clear single subject teaching credential in home economics, a clear foundational math credential, and a clear multiple subject credential.

Kate Williams, M.Ed.

Teacher/Lead Curriculum Designer: RICA, edTPA

Kate currently works as an instructor and a university supervisor. She has taught courses on literacy instruction, methods in ELD/SDAIE, assessment and elementary methods & curriculum. Kate worked as a resource specialist and reading teacher where she planned and executed reading curriculum for reading intervention classes and ran the RTI (Response to Intervention) program. She graduated Summa Cum Laude from the University of Colorado and received her Masters in Education from San Francisco State University after her service with Teach for America.

Brady Lang, M.A.


Brady received his degree in Anthropology from the University of Montana then moved on to receiving a degree in secondary social studies education from Humboldt State University. Brady has been teaching for seven years and has taught a wide variety of subjects including science, history, government and humanities.

Bobi Blue, M.Ed.


Bobi graduated from University of Portland with a B.S. in Secondary Education with a double major in English. She earned a Masters of Education from Lewis and Clark College and along with her M.Ed, she obtained a Documentary Studies Certificate. She has a profound love for the language arts and has taken many opportunities throughout her career to continue to grow her mastery of the English language arts including MothSHOP for teachers, Wordstock, and the Oregon Writing Project. She has taught at an alternative high school for over thirteen years.

Jess Northup, M.A.

Tutor/Grader: CBEST, Praxis Core, FTCE

Jess has over fifteen years' experience in education. He has taught a variety of subjects including English, Spanish, and music. Jess also worked as an early childhood teacher for many years in Chicago. Over the past five years Jess has used his expertise to help ESL programs write curriculum, while still assisting students in the classroom as a teacher. In addition to being a passionate educator, Jess is a song writer and performing musician who loves to travel. He holds a B.A. from Berklee College of Music.

Katrina Hutchins

Curriculum Designer: FTCE

Katrina earned her Bachelors of Arts degree in Elementary Education from Florida Southern College in Lakeland, Florida, in 1999. She then taught third and fourth grade for fifteen years. Following that, she earned her gifted endorsement and taught gifted enrichment classes to students in grades K-5. In 2016, she became endorsed as a reading coach and is a literacy coach for the Polk County School Board in Lakeland.

Carolyn Klarecki


Carolyn graduated from the University of Michigan with a B.A. in Communications and Screen Arts and Cultures while also serving as an editor on The Michigan Daily.

Rabia Afzal

Tutor/Grader: RICA

Rabia graduated with a bachelors degree as well as obtained a Multiple Subject Teaching Credential from San Francisco State University. Shortly after, she cleared her credential from UC San Diego. Rabia has been an elementary school teacher for grades TK-6th over the course of the last 7 years. Her free time is spent exploring new hiking spots in San Francisco, studying Arabic or chasing after her energetic 4-year-old daughter.

Michael Trueman, M.A.

Teacher: CSET Multiple Subjects

Michael Graduated with a B.A. in History from San Francisco State University. He then went on to complete his M.A. in Education and Multiple Subject teaching credential from California State University, Chico. In addition, Michael has added a credential in English from UCLA. He has been teaching middle school for nearly 10 years in the Bay Area. Currently, he is a literacy specialist working with both middle school and high school students in Oakland, California.

Allison McMartin, M.Ed.

Teacher: CSET Multiple Subjects

Allison completed her Bachelor's Degree in Human Development from the University of California, Davis and her Master's Degree in Education and Multiple Subject Teaching Credential from Pepperdine University. She has taught grades TK through 6th for the Simi Valley Unified School District for over 10 years and is working toward her Administrative Services Credential.

Jessica Neumann, M.Ed.

Teacher: CBEST

Jessica has over 20 years of experience as an educator; working as a teacher, instructional leader, and coach in Los Angeles. She currently works as a Math & Science Curriculum Specialist; and is also an Educational Consultant with the Los Angeles County Office of Education. Jessica holds a Master's Degree in Education from California State University Los Angeles and a BA in Film/Television from USC.

Jennifer Herring, M.Ed.

Teacher: CSET Multiple Subjects

Jennifer obtained her Bachelors Degree in Liberal Studies from California State University of Sacramento (CSUS), her Masters in Curriculum & Instruction from the University of the Pacific (UOP), and is currently pursuing her PhD in Curriculum & Instruction with a focus in Language, Diversity, & Literacy Studies. She works at educating, collaborating with, and coaching teachers on foundational literacy practices, Culturally Responsive Teaching, and learning to talk about race and social justice with children and each other. She has also written and adapted SEL (Social Emotional Learning) and ELA (English Language Arts) curriculum that has been adopted by schools throughout the Central Valley Region of California. As an educator who is passionate about making change towards equity in our educational systems, Jennifer values every opportunity she has to work with current and future educators.

Michael Granchukoff, Ph.D.

Teacher: Praxis Elementary Education

Dr. Mike G. earned his Ph.D. in Leadership for Higher Education while working full-time as mathematics department chair and part-time as lead mathematics instructor. He loves giving back and helping support future teachers. His experience in education includes being a teacher, math department chair, various district positions, University MAED/Research Division Chair, and online TPA Assessor. He enjoys helping simplify a process that can seem difficult by clearly communicating and providing practical support. Dr. Mike G. has taught in-person, hybrid, and online at public, private, and charter schools for 17 years.


Administrative and Creative Team


Below is your Teachers Test Prep administrative and creative team. These are the people who ensure that the services you use are reliable and effective, and that you receive excellent customer support whenever you need it. At Teachers Test Prep, our industry-leading test preparation programs are a direct result of the outstanding people who create and manage them.

Robert Duncan

Director and CEO

Robert Duncan began his academic career in the Neuroscience program at UCR, where he went on to receive his bachelors in Creative Writing with Upper Division Honors. He then received his Masters from the Peter Stark Producing Program at USC. In 2005, after tutoring his mom and helping her pass her teacher certification exams, Robert realized the need for high-quality, specialized test preparation programs for aspiring teachers. He founded Teachers Test Prep, and it quickly grew from a one-man operation into the nation's leading provider of teacher certification exam prep.

Justin Hone

Program Advisor/Lead Graphic Designer

Since 2005, Justin has owned and operated a graphic art consulting company which specializes in developing corporate images, presentation materials, web design and marketing materials. He is also a geophysicist and spatial analyst in the environmental forensics field. He earned his B.S. in geophysics from the University of California. Prior to joining the environmental sector in 2004, Justin managed product prototyping, business development and investor support services as president of an explosives detection company's European subsidiary.

Alex Fong

CFO/Director of Operations

Alex completed his undergraduate degree in finance and computer applications at the University of Notre Dame and master's degree in motion picture producing at USC. He has worked in a variety of positions in finance, entertainment, and education.

Stephen Kowalski

Chief Technology Officer

Stephen Kowalski is a senior technology leader with over 15 years experience in Web Development and IT Operations. He has held a variety of technology management positions at Digital Lava, Interactive Video Technologies,, and founded Modern Broker. He graduated from UCLA with a degree in psychology, specializing in education and modeling the brain through artificial intelligence and neural networks.

Jay Tulathimutte

Lead Developer/System Administrator

Jay is a senior-level software engineer with system administration skills. His spends most of his working hours in the terminal ssh'ed to some remote machine. He has broad skills in Full Stack Web Development. He never stops learning.

Rebecca Sweeney

Customer Service/Administrative Coordinator

After graduating with a Bachelor's Degree in Cinema Studies from the Tisch School of the Arts at New York University, Rebecca moved to San Francisco and began working in marketing. She worked in both the nonprofit sector and the startup arena for several years before taking a year-long break to travel around the country. Upon returning to the Bay Area, Rebecca was especially drawn to Teachers Test Prep, as her mother was an elementary school teacher.

Edward Hamrock

Coordinator of Programs and Curriculum

Edward is an educator and researcher whose studies and interests have led him to institutions such as CSU Long Beach, Humboldt-Universität zu Berlin and Bach-Archiv Leipzig. Having a mom as a teacher, he is thrilled to be part of the Teachers Test Prep team and help shape the paths of future educators.

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