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我们目前提供所有课程直播我们的 在线平台。报名现已开放!  


在 JAC,我们认为远程学习不应以任何方式损害我们学生的学习体验。我们利用最先进的技术来提供实时、在线、互动的课程。我们只聘请和保留最优质的教师,每一位教师都是由郑博士亲自挑选和严格筛选的。


我们很自豪能够提供著名的 SAT 研讨会以及广受欢迎的 2021 年春季课程,两者现已开始招生。对于 2021 年春季课程,我们准备了 100 多门课程供学生选择。每个课程的开设都考虑到学生的智力发展和学术需求。我们很乐意帮助您选择最有利于和丰富您孩子的教育的课程。请立即致电 805-777-3437 或发送邮件至 联系我们。

Our Course Offerings:



Our renowned SAT/ACT workshop delivers results with a uniquely rigorous & enriching approach.

Summer Program

Currently offering 40 courses in our popular Summer Program, suited for all types of learners, open for enrollment now.


Prep Courses for the Secondary School Aptitude Test (SSAT) as well as the Independent School Entrance Exam (ISEE)



Advanced Placement offerings include AP Chinese, English, Chemistry, Physics and Calculus.

English Programs

Reading and writing skills are essential tools for clear, critical thinking. JAC offers English  classes for students from grades 3 to 11.

English as a 2nd Language

The ESL program at JAC is designed to assist students whose first language is not English to acquire proficiency in the English language.


Prep Courses for the International Test of English Proficieny (ITEP) as well as the TOEFL iBT Test. 

Other Offerings

Dr. Jeng takes pride in offering  a variety of different courses, including: Speech &  Debate, Poetry and Calligraphy, Greek Mythology, among others.

Our Mission

Our mission is to inspire in every student a passion for learning and to cultivate in him a habit of clear thinking. Our courses are designed to help students achieve their immediate academic goals, such as mastering reading and writing skills, becoming proficient in math, passing an AP class, or getting accepted into a prestigious university; however, we also teach them to recognize these achievements as mere stepping stones toward a lifelong intellectual growth.

We aspire to educate a new generation of young people armed with a solid background in humanities, mathematics, and science through a curriculum based on classical literature, philosophy, and other resources customized into course materials by Dr. De-Yin Jeng.

Why choose us?

The JAC Difference


  Dr. Jeng’s unique philosophy as an educator sets his center apart from the big-business, high-churn tutoring companies that are common in the space.  He believes that in providing a more classical and holistic instruction, students will not only greatly improve their test scores, but also enhance and enrich their attitude and approach to learning.


Dr. Jeng leads a group of top-notch, hand-picked educators who are experts in their respective fields and share in the unique culture and philosophy that JAC is dedicated to.  Many teachers have been with JAC for over a decade, providing for a continuity of instruction and contributing to our uncompromising standard of teaching quality.


Whether courses are delivered in-person or online, JAC students are encouraged to be active participants in their education, asking questions and staying engaged in the classroom.  They also receive personalized guidance, attention and feedback to keep them on track toward their goals.


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Nicholas M.

Oak Park High School

SAT Score: 2400 (out of 2400)

 I have taken many classes, both inside and outside of school, but Dr. Jeng’s SAT workshop stands out, because, unlike the others, it has taught me more than just rules and knowledge; it has taught me to clear up the clutter in my mind and think.  The skills I acquired in his class did not stop being useful after I took the SAT, and they are still helping me now. It wasn’t just about doing well on the SAT. He taught me a higher level of thinking.


Kristen E.

Westlake High School

SAT Score: 2370 (out of 2400)

Dr. Jeng does more than teach; he genuinely cares about each and every one of his students. He would always stop and make sure that each student fully understood a problem before moving on. From checking in daily on his students to setting meetings with everyone to track progress, Dr. Jeng transcended his obligations as an SAT instructor to act as a life guide and mentor. For this, I am eternally grateful to Dr. Jeng and JAC as a whole.

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Franklin C.

Westlake High School

SAT Score: 1570 (out of 1600)

 The SAT workshop not only prepared me for a score, but also enabled me to be much more successful in approaching my junior year... I am more methodical and patient in school and in my extracurricular activities. I study differently and have been able to focus for longer periods of time. I definitely recommend JAC SAT workshop for anyone looking to improve their SAT score as well as their abilities in school!

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